Bioscience II : Test 1

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Scottishduffy
S
Scottishduffy
Community Contributor
Quizzes Created: 28 | Total Attempts: 62,390
| Attempts: 305
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/116 Questions

    The arterial supply of the brain contains a confluence of vessels known as…

    • Circle of Webster
    • Circle of Willis
    • Circle of Willebrand
    • Circle of Wicke
Please wait...
About This Quiz

A review of the material for Bioscience II test 1. Covering the neuro lectures including anatomy of CNS, PNS, neurons, and flow of CSF.

Bioscience II : Test 1 - Quiz

Quiz Preview

  • 2. 

    This is it! You are back in 4th grade and finally you have HAD IT with that brat Jennifer that teases you everyday. You decide to meet her on the schoolyard after school and teach her a lesson.  As you approach the playground you notice your heart pounding, you are sweating,  your pupils dilating, and it feels like your blood pressure has gone way up. Your whole body seems wired! Which system has allowed for your response to this momentous ass-kicking occasion?

    • Parasympathetic Nervous System

    • Sympathetic nervous system

    • Afferent nervous system

    • Somatic nervous System

    Correct Answer
    A. Sympathetic nervous system
    Explanation
    The sympathetic nervous system is responsible for the body's fight-or-flight response, which includes increased heart rate, sweating, dilated pupils, and elevated blood pressure. In this situation, where the individual is feeling anxious and ready to confront someone, these physiological changes indicate the activation of the sympathetic nervous system. This system prepares the body for action and helps to mobilize energy resources in response to a perceived threat or challenge.

    Rate this question:

  • 3. 

    You have just come home from a long day the Miami RibFest. Today you stuffed yourself silly on ribs, tater twisters, and fried twinkies. You get home and immediately lay on your couch. You feel so sleepy! It feels like your whole body is slowing down and your stomach is working away to digest all the food.  Which system allows for this response?

    • Afferent Nervous System

    • Sympathetic Nervous System

    • Parasympathetic Nervous System

    • Thoracolumbar Nervous System

    Correct Answer
    A. Parasympathetic Nervous System
    Explanation
    The parasympathetic nervous system is responsible for the "rest and digest" response in the body. After consuming a large meal, the parasympathetic nervous system is activated to promote digestion and relaxation. It slows down heart rate, constricts blood vessels, and increases activity in the digestive system. This explains the feeling of sleepiness and the sensation of the body slowing down after eating a heavy meal.

    Rate this question:

  • 4. 

    Which type of nerve tract is primarily Sensory?

    • Nerve tracts are both sensory and motor.

    • Ascending Tracts

    • Descending Tracts

    • Dendritic Tracts

    Correct Answer
    A. Ascending Tracts
    Explanation
    Ascending tracts are primarily sensory nerve tracts. These tracts carry sensory information from the peripheral nervous system to the brain. They transmit signals such as touch, pain, temperature, and proprioception. In contrast, descending tracts primarily carry motor information from the brain to the peripheral nervous system, controlling voluntary movements. Dendritic tracts are not a recognized term in neuroscience, so they are not relevant to the question.

    Rate this question:

  • 5. 

    Which type of nerve tract is primarily Motor?

    • Nerve tracts are both sensory and motor.

    • Ascending Tracts

    • Descending Tracts

    • Dendritic Tracts

    Correct Answer
    A. Descending Tracts
    Explanation
    Descending tracts primarily carry motor information from the brain to the muscles and glands, allowing for voluntary movement and control. Sensory information is primarily carried by ascending tracts, which transmit signals from the sensory receptors to the brain for processing. Dendritic tracts are not a recognized type of nerve tract and do not play a role in motor or sensory transmission.

    Rate this question:

  • 6. 

    Transverse Myelitis is a disease which cause demyelination. This results in paralysis of the patient that is often permanent.  What is myelin’s function and why is this important?

    • Myelin acts as insulator for nerves to speed conduction of impulses along the nerve.

    • Myelin receives incoming synaptic information from environment or other neurons and generates impulse.

    • Myelin is a particular type of axon which conducts motor impulses down the spinal cord.

    • Myelin cells relay information from one axon to another within the brain, allowing for higher levels of processing information and decision making.

    Correct Answer
    A. Myelin acts as insulator for nerves to speed conduction of impulses along the nerve.
    Explanation
    Myelin acts as an insulator for nerves, allowing for faster conduction of impulses along the nerve. This is important because it ensures efficient and rapid communication between different parts of the body. Without myelin, the conduction of impulses would be slower, leading to impaired motor and sensory functions. In the case of Transverse Myelitis, the demyelination of nerves results in paralysis because the impulses are unable to travel properly along the affected nerves.

    Rate this question:

  • 7. 

    The Sacral plexus originates from what spinal nerves?

    • L1-L4

    • T8-T12

    • L5-S1

    • C5-C8

    Correct Answer
    A. L5-S1
    Explanation
    The sacral plexus originates from the spinal nerves L5-S1. The sacral plexus is a network of nerves that supplies the lower limbs and pelvic region. The spinal nerves L5-S1 refer to the fifth lumbar vertebra and the first sacral vertebra. These nerves contribute to the formation of the sacral plexus, which plays a crucial role in motor and sensory functions of the lower body.

    Rate this question:

  • 8. 

    Acute Hypertonicity will cause net movement of water ____  the brain, while Acute Hypotonicity will cause net movement of water ____ the brain.

    • Out, into

    • Into, out

    • Don’t Know, Don’t care

    Correct Answer
    A. Out, into
    Explanation
    Acute Hypertonicity refers to a condition where the concentration of solutes outside the brain cells is higher than inside. This causes water to move out of the brain cells, resulting in a net movement of water out of the brain. On the other hand, Acute Hypotonicity occurs when the concentration of solutes outside the brain cells is lower than inside. This causes water to move into the brain cells, resulting in a net movement of water into the brain.

    Rate this question:

  • 9. 

    Which nerve cells are the first to receive incoming information from the external environment?

    • Afferent sensory neurons

    • Efferent sensory neurons

    • Afferent motor neurons

    • Efferent sensory neurons

    Correct Answer
    A. Afferent sensory neurons
    Explanation
    Afferent sensory neurons are the first nerve cells to receive incoming information from the external environment. These neurons are responsible for transmitting sensory signals from sensory organs, such as the eyes, ears, and skin, to the central nervous system (CNS). They play a crucial role in allowing us to perceive and respond to the stimuli in our environment.

    Rate this question:

  • 10. 

    Normal CSF is…

    • Pale yellow, turbid, odorless

    • Viscous, colorless, slight sweet odor

    • Clear, colorless, odorless

    • Clear, Yellowish, viscous

    Correct Answer
    A. Clear, colorless, odorless
    Explanation
    Normal CSF is clear, colorless, and odorless. This means that it should not have any visible particles or cloudiness, and it should not have a distinct smell. CSF is a clear fluid that surrounds the brain and spinal cord, providing protection and nutrients. Any changes in its appearance or smell may indicate an underlying medical condition or infection. Therefore, clear, colorless, and odorless CSF is considered normal.

    Rate this question:

  • 11. 

    Where is CSF formed?

    • Arachnoid granulations

    • Choroid Plexuses

    • Pineal Gland

    • Endothelial cells of villi

    Correct Answer
    A. Choroid Plexuses
    Explanation
    CSF (Cerebrospinal fluid) is formed in the choroid plexuses. These structures are located within the ventricles of the brain, specifically in the lateral, third, and fourth ventricles. The choroid plexuses consist of a network of blood vessels covered by specialized ependymal cells. These cells actively transport substances from the blood into the ventricles, creating the CSF. The CSF then circulates around the brain and spinal cord, providing important functions such as cushioning, protection, and waste removal.

    Rate this question:

  • 12. 

    The brain is responsible for what percentage of total body oxygen consumption?

    • 40%

    • 5%

    • 10%

    • 20%

    Correct Answer
    A. 20%
    Explanation
    The brain is responsible for 20% of the total body oxygen consumption. This is because the brain requires a significant amount of oxygen to function properly. Even though the brain only makes up about 2% of the body's weight, it utilizes a large amount of oxygen to support its various functions, such as thinking, processing information, and controlling bodily functions. Therefore, 20% is the correct answer.

    Rate this question:

  • 13. 

    At which of the following MAP’s would CBF no longer remain constant?

    • 58

    • 67

    • 122

    • 149

    Correct Answer
    A. 58
  • 14. 

    The Lumbar plexus originates from what spinal nerves?

    • L1-L4

    • T8-T12

    • L5-S1

    • C5-C8

    Correct Answer
    A. L1-L4
    Explanation
    The Lumbar plexus originates from the spinal nerves L1-L4. These spinal nerves are located in the lumbar region of the spine, which is in the lower back. The lumbar plexus is a network of nerves that supplies motor and sensory innervation to the lower limbs and lower abdominal region. By originating from the L1-L4 spinal nerves, the lumbar plexus is able to provide the necessary nerve supply to these areas of the body.

    Rate this question:

  • 15. 

    The largest nerve coming from the sacral plexus is…

    • Sciatic Nerve

    • Phrenic Nerve

    • Peroneal Nerve

    • Femoral nerve

    Correct Answer
    A. Sciatic Nerve
    Explanation
    The largest nerve coming from the sacral plexus is the sciatic nerve. The sciatic nerve is formed by the combination of several nerve roots from the lower back and sacral region. It is the longest and thickest nerve in the body and extends from the lower back down to the feet. The sciatic nerve provides motor and sensory innervation to the muscles of the lower leg and foot. It is responsible for transmitting signals for movement and sensation from the lower extremities to the brain.

    Rate this question:

  • 16. 

    The  ________ spreads over the diencephalon and occupies most of cranium.

    • Cerebellum

    • Cortex

    • Cerebrum

    • Central Sulcus

    Correct Answer
    A. Cerebrum
    Explanation
    The cerebrum is the correct answer because it is the largest part of the brain and occupies most of the cranium. It is responsible for higher cognitive functions such as thinking, memory, and perception. The cerebrum is divided into two hemispheres and is covered by the cerebral cortex, which is responsible for processing sensory information and initiating motor commands.

    Rate this question:

  • 17. 

    The _____ root of the spinal nerve contains motor outflow tracts.

    • Dorsal

    • Ventral

    • Anterolateral

    • Caudal

    Correct Answer
    A. Ventral
    Explanation
    The ventral root of the spinal nerve contains motor outflow tracts. This is because the ventral root is responsible for transmitting motor signals from the spinal cord to the muscles and glands of the body. It carries efferent nerve fibers, which are responsible for motor function, whereas the dorsal root carries afferent nerve fibers, responsible for sensory function. Therefore, the ventral root is the correct answer as it is specifically associated with motor outflow tracts.

    Rate this question:

  • 18. 

    The Cervical Plexus is formed by which spinal nerves?

    • L1-L4

    • C1-C4

    • L5-S1

    • C5-C8

    Correct Answer
    A. C1-C4
    Explanation
    The correct answer is C1-C4. The cervical plexus is a network of nerves that originates from the first four cervical spinal nerves (C1-C4). These nerves innervate various structures in the neck, including the skin, muscles, and glands. They play a crucial role in controlling movements and sensations in the head, neck, and upper shoulders.

    Rate this question:

  • 19. 

    Ependymal cells...

    • Line cerebral vesicles and spinal cord

    • Constitute brain matter

    • Constitute white matter

    • Are the epithelial lining of GI and Resp tract

    Correct Answer
    A. Line cerebral vesicles and spinal cord
    Explanation
    Ependymal cells are a type of epithelial cells that line the cerebral vesicles (ventricles) of the brain and the central canal of the spinal cord. These cells play a crucial role in producing cerebrospinal fluid (CSF) and helping to circulate it within the brain and spinal cord. They also provide structural support and contribute to the maintenance of the blood-brain barrier. Therefore, the correct answer is that ependymal cells line cerebral vesicles and spinal cord.

    Rate this question:

  • 20. 

    The Dorsal Horn contains what type of neuron function:

    • Afferent

    • Efferent

    • Lateral

    • Posterior

    Correct Answer
    A. Afferent
    Explanation
    The dorsal horn contains afferent neuron function. Afferent neurons are responsible for carrying sensory information from the peripheral nervous system to the central nervous system. In this case, the dorsal horn, which is located in the spinal cord, receives sensory signals from the body and transmits them to the brain for processing.

    Rate this question:

  • 21. 

    The Autonomic nervous system is further subdivided into which two systems?

    • Sympathetic nervous system

    • Parasympathetic nervous system

    • Somatic nervous system

    • Afferent Nervous System

    Correct Answer(s)
    A. Sympathetic nervous system
    A. Parasympathetic nervous system
    Explanation
    The autonomic nervous system is responsible for regulating involuntary bodily functions. It is further divided into two systems: the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system activates the "fight or flight" response, preparing the body for action in response to stress or danger. The parasympathetic nervous system, on the other hand, promotes relaxation and conserves energy, counteracting the effects of the sympathetic nervous system. These two systems work together to maintain balance and regulate bodily functions. The somatic nervous system, on the other hand, controls voluntary movements and receives sensory information from the external environment. The afferent nervous system refers to the part of the peripheral nervous system that carries sensory information from the body to the central nervous system.

    Rate this question:

  • 22. 

    In the pre-embryonic period, which of the primary germ layers will become the Nervous System?

    • Prosencephalon

    • Ectoderm

    • Mesoderm

    • Endoderm

    Correct Answer
    A. Ectoderm
    Explanation
    During the pre-embryonic period, the primary germ layer that will become the Nervous System is the Ectoderm. The ectoderm is the outermost layer of cells in the embryo and it gives rise to various structures including the nervous system, skin, hair, and nails. The nervous system develops from a specialized region of the ectoderm called the neural plate, which eventually forms the brain and spinal cord. Therefore, the correct answer is Ectoderm.

    Rate this question:

  • 23. 

    The brain stem consists of all the following except:

    • Thalamus

    • Medulla Oblongata

    • Pons

    • Midbrain

    Correct Answer
    A. Thalamus
    Explanation
    The brain stem is a part of the central nervous system that connects the brain to the spinal cord. It is responsible for controlling many vital functions such as breathing, heart rate, and blood pressure. The brain stem consists of three main parts: the medulla oblongata, the pons, and the midbrain. The thalamus, on the other hand, is not a part of the brain stem. It is located above the brain stem and acts as a relay station for sensory information, directing it to the appropriate areas of the brain for processing. Therefore, the correct answer is Thalamus.

    Rate this question:

  • 24. 

    ________  stabilizes the blood brain barrier secondary to a decrease in PACO2 and decrease CMRO2.

    • Hyponatremia

    • Hypotension

    • Hypoventilation

    • Hypothermia

    Correct Answer
    A. Hypothermia
    Explanation
    Hypothermia can stabilize the blood-brain barrier by causing a decrease in partial pressure of arterial carbon dioxide (PACO2) and cerebral metabolic rate of oxygen (CMRO2). When the body temperature drops, it leads to a decrease in PACO2 and CMRO2, which can help stabilize the blood-brain barrier. This stabilization is important for maintaining the integrity of the barrier and preventing the passage of harmful substances into the brain.

    Rate this question:

  • 25. 

    The outer most layer that surrounds the spinal cord is the:

    • Pia

    • Dura

    • Subdural

    • Arachnoid

    Correct Answer
    A. Dura
    Explanation
    The correct answer is Dura. The dura mater is the outermost layer that surrounds and protects the spinal cord. It is a tough, fibrous membrane that provides support and stability to the spinal cord. It acts as a protective barrier, preventing damage to the delicate nerve tissue of the spinal cord.

    Rate this question:

  • 26. 

    Development of the Nervous System begins at what point in gestation?

    • 2-4 days post implantation

    • 7 weeks gestation

    • 1 week gestation

    • 3 weeks gestation

    Correct Answer
    A. 3 weeks gestation
    Explanation
    The correct answer is 3 weeks gestation. Development of the Nervous System begins at this point in gestation. This is when the neural tube starts to form, which eventually develops into the brain and spinal cord. The nervous system is essential for transmitting signals throughout the body and is crucial for proper functioning.

    Rate this question:

  • 27. 

    Afferent neurons are found within the _____ horns of gray matter in spinal cord.

    • Dorsal

    • Ventral

    • Lateral

    • Foraminal

    Correct Answer
    A. Dorsal
    Explanation
    Afferent neurons are sensory neurons that carry information from the sensory receptors to the central nervous system. They are found within the dorsal horns of gray matter in the spinal cord. The dorsal horns are located on the back side of the spinal cord and receive sensory input from the body.

    Rate this question:

  • 28. 

    Which of the following will not affect CBF?

    • Hyperventilation

    • Muscle paralysis with Vecuronium

    • Warming the pt

    • Giving 2u PRBC transfusion

    Correct Answer
    A. Muscle paralysis with Vecuronium
    Explanation
    Muscle paralysis with Vecuronium will not affect CBF because Vecuronium is a neuromuscular blocking agent that acts on the motor endplate of the neuromuscular junction, causing skeletal muscle relaxation and paralysis. It does not have any direct effect on cerebral blood flow (CBF) as it does not directly affect the blood vessels supplying the brain.

    Rate this question:

  • 29. 

    The  _____ root of the spinal nerve is largely sensory.

    • Ventral

    • Caudal

    • Dorsal

    • Intervetebral

    Correct Answer
    A. Dorsal
    Explanation
    The dorsal root of the spinal nerve is largely sensory. The dorsal root is responsible for transmitting sensory information from the body to the spinal cord. It contains sensory nerve fibers that carry signals such as pain, temperature, and touch from the body to the central nervous system. In contrast, the ventral root is largely motor, carrying signals from the spinal cord to the muscles and glands. Therefore, the correct answer is "Dorsal."

    Rate this question:

  • 30. 

    What is the major nerve contained within the Cervical Plexus?

    • Sciatic Nerve

    • Transverse Cervical Nerve

    • Phrenic Nerve

    • Great Auricular Nerve

    Correct Answer
    A. Phrenic Nerve
    Explanation
    The phrenic nerve is the major nerve contained within the Cervical Plexus. It originates from the C3-C5 spinal nerves and supplies motor and sensory innervation to the diaphragm, the primary muscle responsible for breathing. The phrenic nerve plays a crucial role in controlling the movement of the diaphragm and ensuring proper respiration.

    Rate this question:

  • 31. 

    Mannitol is easily able to cross Blood Brain Barrier to aid in reducing ICP.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Mannitol is not easily able to cross the Blood Brain Barrier (BBB) to aid in reducing Intracranial Pressure (ICP). The BBB is a selective barrier that prevents the entry of many substances into the brain, including mannitol. While mannitol can be used to reduce ICP, it does so by drawing fluid from the brain into the bloodstream, rather than directly crossing the BBB. Therefore, the statement is false.

    Rate this question:

  • 32. 

    How will infusion of 3% NS affect movement on water in the brain?

    • Hypertonic, will cause water to move into brain

    • Hypertonic, will cause water to move out of brain

    • Hypotonic, will cause water to move into brain

    • Hypotonic, will cause water to move out brain

    Correct Answer
    A. Hypertonic, will cause water to move out of brain
    Explanation
    The infusion of 3% NS (normal saline) is hypertonic, meaning it has a higher concentration of solutes compared to the brain cells. In this case, water will move out of the brain cells through osmosis, as water always moves from an area of lower solute concentration to an area of higher solute concentration. Therefore, the correct answer is that the infusion of 3% NS will cause water to move out of the brain.

    Rate this question:

  • 33. 

    In the pre-embryonic period, which of the primary germ layers will become the lining of the digestive and respiratory tracts?

    • Prosencephalon

    • Ectoderm

    • Rhombencephalon

    • Endoderm

    Correct Answer
    A. Endoderm
    Explanation
    During the pre-embryonic period, the primary germ layer that will become the lining of the digestive and respiratory tracts is the endoderm. The endoderm is one of the three primary germ layers that form during early embryonic development. It gives rise to the epithelial lining of the digestive system, including the stomach, intestines, and lungs. The endoderm also contributes to the formation of various organs such as the liver, pancreas, and thyroid gland.

    Rate this question:

  • 34. 

    Which portion of the brain controls HR respirations, and blood vessel diameter?

    • Midbrain

    • Vestibular Nuclear Complex

    • Medulla

    • Pineal Gland

    Correct Answer
    A. Medulla
    Explanation
    The medulla, located in the brainstem, controls HR (heart rate), respirations, and blood vessel diameter. It is responsible for regulating vital functions such as breathing, blood pressure, and heart rate. The medulla contains various centers that receive and process information from the body and send signals to control these functions. It plays a crucial role in maintaining homeostasis and ensuring the proper functioning of the cardiovascular and respiratory systems.

    Rate this question:

  • 35. 

    Which Cranial nerves have both sensory and motor function?

    • CNs I, II, VIII

    • CNs V, VII, IX, X

    • CN’s III, IV, VI

    • CN’s XI & XII

    Correct Answer
    A. CNs V, VII, IX, X
    Explanation
    Cranial nerves V, VII, IX, and X have both sensory and motor functions. Cranial nerve V, also known as the trigeminal nerve, is responsible for sensory information from the face and motor functions for chewing. Cranial nerve VII, the facial nerve, is involved in sensory functions for taste and motor functions for facial expressions. Cranial nerve IX, the glossopharyngeal nerve, has sensory functions for taste and motor functions for swallowing. Lastly, cranial nerve X, the vagus nerve, has sensory functions for various organs and motor functions for controlling the heart, lungs, and digestive tract.

    Rate this question:

  • 36. 

    You are caring for Mrs. Moody who is coming in today to be sedated for an MRI scan to evaluate an intracranial tumor. When evaluating her symptoms you notice her left eye is looking down and out. There is also ptosis and papillary dilation present as well. This likely due to compression of which nerve?

    • Optic

    • Trigeminal

    • Oculomotor

    • Facial

    Correct Answer
    A. Oculomotor
    Explanation
    The correct answer is Oculomotor. The symptoms described, such as the downward and outward gaze, ptosis, and papillary dilation, are all indicative of oculomotor nerve dysfunction. The oculomotor nerve controls the movement of the eye muscles responsible for upward, downward, and inward gaze, as well as the muscles that control eyelid elevation (ptosis) and pupil constriction (papillary dilation). Compression of the oculomotor nerve can result in these symptoms, which are consistent with the patient's presentation.

    Rate this question:

  • 37. 

    What percentage of total blood volume circulates in the brain?

    • 18%

    • 25%

    • 12%

    • 37%

    Correct Answer
    A. 18%
    Explanation
    The correct answer is 18%. This means that approximately 18% of the total blood volume in the body circulates in the brain. The brain is a highly vascular organ and requires a constant supply of oxygen and nutrients, which are delivered through the bloodstream. The brain also plays a crucial role in regulating blood flow to ensure that it receives an adequate supply of blood at all times.

    Rate this question:

  • 38. 

    After leaving the 3rd ventricle, CSF flows….

    • Through the cerebral aqueduct, into 4th ventricle

    • Into subarachnoid space to circulate around brain and spinal cord

    • Through interventricular foramina, into 3rd ventricle

    • Through median and lateral apertures, into cisterna magna

    Correct Answer
    A. Through the cerebral aqueduct, into 4th ventricle
    Explanation
    After leaving the 3rd ventricle, CSF flows through the cerebral aqueduct into the 4th ventricle. The cerebral aqueduct is a narrow passage located in the midbrain that connects the 3rd and 4th ventricles. CSF flows through this aqueduct to reach the 4th ventricle, which is a diamond-shaped cavity located in the brainstem. From the 4th ventricle, the CSF can then circulate further into the subarachnoid space surrounding the brain and spinal cord, providing nourishment and protection to these structures.

    Rate this question:

  • 39. 

    The Ventral Horn consists of what type of function

    • Afferent

    • Efferent

    • Lateral

    • Posterior

    Correct Answer
    A. Efferent
    Explanation
    The Ventral Horn is a region in the spinal cord that contains motor neurons responsible for sending signals from the central nervous system to the muscles and glands, controlling voluntary movements and other bodily functions. These motor neurons are part of the efferent pathway, which carries signals away from the central nervous system to the peripheral nervous system. Therefore, the correct answer is "Efferent."

    Rate this question:

  • 40. 

    Ouch!! You just slammed your fingers in the car door! As you let loose a string of bad language that would impress even the most seasoned sailor, you remember that which type of nerve is responsible for conducting this sensation from your fingers to your brain?

    • Afferent Nerve

    • Somatic Nerves

    • Efferent Nerves

    • Thoracolumbar nerves

    Correct Answer
    A. Afferent Nerve
    Explanation
    The correct answer is Afferent Nerve. Afferent nerves are responsible for conducting sensory information from the body to the brain. In this case, when you slam your fingers in the car door, the afferent nerves in your fingers transmit the sensation of pain to your brain, allowing you to perceive and react to the injury.

    Rate this question:

  • 41. 

    As you are driving down the highway on your way home from a long day of clinical, another driver is tailgating you and honks his horn for no reason. You would like to flick this guy off. Which type of nerve sends an impulse from your brain to your finger in order to allow you to flick of this inconsiderate jerk?

    • Autonomic nerves

    • Somatic nerves

    • Afferent nerves

    • Parasympathetic nerves

    Correct Answer
    A. Somatic nerves
    Explanation
    Somatic nerves are responsible for transmitting impulses from the brain to the finger in order to allow you to flick off the inconsiderate driver. These nerves are part of the somatic nervous system, which controls voluntary movements of the body. In this situation, flicking off the driver would be a conscious, voluntary action, and therefore somatic nerves would be involved in carrying out this action.

    Rate this question:

  • 42. 

    Which of the primary vesicles formed in the embryonic period will become the midbrain?

    • Mesencephalon

    • Rhombencephalon

    • Diencephalon

    • Prosencephalon

    Correct Answer
    A. Mesencephalon
    Explanation
    The correct answer is Mesencephalon. During the embryonic period, the brain develops from three primary vesicles: prosencephalon, mesencephalon, and rhombencephalon. The mesencephalon, also known as the midbrain, is the primary vesicle that will develop into the midbrain. The diencephalon will become the forebrain, the rhombencephalon will become the hindbrain, and the prosencephalon will become the midbrain and forebrain.

    Rate this question:

  • 43. 

    The majority of cerebral aneursyms are located where in the brain?

    • Posterior circle of willis

    • Middle circle of willis

    • Anterior circle of willis

    • Basilar Artery

    Correct Answer
    A. Anterior circle of willis
    Explanation
    The correct answer is the Anterior circle of Willis. The majority of cerebral aneurysms are located in the anterior circle of Willis, which is a circulatory network of arteries at the base of the brain. This network includes the anterior cerebral arteries, anterior communicating artery, and the internal carotid arteries. Aneurysms in this area can lead to serious complications such as hemorrhage or stroke.

    Rate this question:

  • 44. 

    The Brachial Plexus is formed by which spinal nerves?

    • C1-C4

    • L5-S1

    • L1-L4

    • C5-C8

    Correct Answer
    A. C5-C8
    Explanation
    The Brachial Plexus is formed by the spinal nerves C5-C8. This means that these specific spinal nerves come together to create the network of nerves known as the Brachial Plexus.

    Rate this question:

  • 45. 

    The ectoderm of the blastocyst eventually develops into what?

    • Spinal cord

    • Muscle and connective tissue

    • Lining of GI and Resp tract

    • Skin and nervous system

    Correct Answer
    A. Skin and nervous system
    Explanation
    The ectoderm of the blastocyst eventually develops into the skin and nervous system. This is because during embryonic development, the ectoderm gives rise to the outer layer of the embryo, which later differentiates into the epidermis of the skin and the neural plate, which forms the basis for the development of the nervous system.

    Rate this question:

  • 46. 

    The mesencephalon develops into the:

    • Thalamus, hypothalamus and pineal gland

    • Hind brain

    • Midbrain

    • Cerebral hemispheres and basal ganglia

    Correct Answer
    A. Midbrain
    Explanation
    The mesencephalon is a region of the brain that develops into the midbrain. The midbrain is responsible for various functions including sensory processing, motor control, and the regulation of sleep and wake cycles. It acts as a relay station for information traveling between the brainstem and the higher regions of the brain. Therefore, the correct answer is midbrain.

    Rate this question:

  • 47. 

    The finger like granulations within the arachnoid space are responsible for what:

    • Producing CSF

    • Storing CSF

    • Absorption of CSF

    • Filtering CSF

    Correct Answer
    A. Absorption of CSF
    Explanation
    The finger-like granulations within the arachnoid space are responsible for the absorption of cerebrospinal fluid (CSF). These structures, known as arachnoid villi or granulations, protrude into the venous sinuses of the brain. They allow for the transfer of CSF from the subarachnoid space into the bloodstream, where it can be reabsorbed. This process helps to regulate the volume and pressure of CSF within the brain and spinal cord, maintaining a stable environment for neural function.

    Rate this question:

  • 48. 

    You are ever so proudly taking your 4 yr old daughter to ballet. As you watch the class you notice your special snowflake completely lacks coordination. Her arms and legs are flinging in every direction, she tips over when asked to stand on one leg or do bar exercises, and her teacher states she has horrible posture.  While thinking back to functions of the brain, you realize your little klutz probably needs to better develop her _______ to help with these issues.

    • Midbrain

    • Pons

    • Cerebellum

    • You don’t care…. She looks really cute and happy spinning in circles while the others gracefully dance.

    Correct Answer
    A. Cerebellum
    Explanation
    The given correct answer is the cerebellum. The cerebellum is responsible for coordinating movement, balance, and posture. In this scenario, the 4-year-old daughter lacks coordination, tips over when asked to stand on one leg or do bar exercises, and has poor posture, indicating that her cerebellum needs to develop to help improve these issues.

    Rate this question:

  • 49. 

    COMIC RELIEF: Brought to you by the muppets...

    • Wait a sec.... I don't think the muppets would really sing that.

    • Weed!! This video violates my strict morals and I am appalled by it!

    • Ha ha ha, nice to see that children can receive an honest education through music.

    • All the Above

    Correct Answer
    A. All the Above
    Explanation
    The given correct answer is "All the Above" because the statement "All the Above" encompasses all the options mentioned in the question. The question states different opinions about a video involving the Muppets, and the answer suggests that all of the opinions mentioned (whether it is questioning the Muppets singing, being offended by the video, or appreciating the educational aspect) could be true.

    Rate this question:

Quiz Review Timeline (Updated): Feb 10, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Feb 10, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 26, 2009
    Quiz Created by
    Scottishduffy
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.