Life Science Ch. 15; The Nervous System

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  • 1/15 Questions
    The part labled D is the... - ProProfs

    The part labled D is the...

    • Cerebrum
    • Cerebellum
    • Brain Stem
    • Spinal cord
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Life Science Ch. 15; The Nervous System - Quiz
About This Quiz

This quiz assesses knowledge of the human nervous system, focusing on structures like axons, synapses, and the spinal cord, and functions such as motor neuron activity and memory processes. It is designed to enhance understanding of neurobiology in a life science context.

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  • 2. 
    Structure B is the... - ProProfs

    Structure B is the...

    • Cerebrum

    • Cerebellum

    • Brain stem

    • Spinal cord

    Correct Answer
    A. Cerebellum
    Explanation
    The cerebellum is responsible for coordinating voluntary movements, balance, and posture. It is located at the back of the brain, beneath the cerebrum. While the cerebrum is responsible for higher cognitive functions such as thinking and problem-solving, the cerebellum plays a crucial role in motor control and coordination. It receives information from the sensory systems, spinal cord, and other parts of the brain to fine-tune movements and maintain balance. Therefore, based on its functions and location, it can be concluded that Structure B is the cerebellum.

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  • 3. 

    The thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system is the ...

    • Brain

    • Spinal cord

    • Cerebellum

    • Cornea

    Correct Answer
    A. Spinal cord
    Explanation
    The spinal cord is a thick column of nerve tissue that connects the brain to the peripheral nervous system. It is responsible for transmitting signals between the brain and the rest of the body, allowing for communication and coordination of bodily functions. The spinal cord also plays a crucial role in reflex actions, as it can process and respond to certain stimuli without the involvement of the brain.

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  • 4. 

    The part of the brain that controls balance is the ______________________

    Correct Answer
    cerebellum
    Explanation
    The cerebellum is responsible for controlling balance in the body. It receives information from the sensory systems, such as the inner ear and the eyes, and uses this information to coordinate movements and maintain balance. The cerebellum also plays a crucial role in fine motor skills and coordination. Damage to the cerebellum can result in problems with balance and coordination, leading to difficulties in walking, standing, and performing everyday tasks.

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  • 5. 
    Structure A is the... - ProProfs

    Structure A is the...

    • Cerebrum

    • Cerebellum

    • Brain stem

    • Pineal gland

    Correct Answer
    A. Cerebrum
    Explanation
    The cerebrum is the correct answer because it is the largest part of the brain and is responsible for higher cognitive functions such as thinking, memory, and voluntary actions. It is divided into two hemispheres and contains various lobes that control different functions. The cerebrum also plays a crucial role in sensory perception and language processing.

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  • 6. 

    The long "stringy" portion of a nerve cell along which a nerve impulse travels away from the cell body is called the...

    • Dendrite

    • Schwann Cell

    • Synapse

    • Axon

    Correct Answer
    A. Axon
    Explanation
    The axon is the long "stringy" portion of a nerve cell along which a nerve impulse travels away from the cell body. It is responsible for transmitting electrical signals from the cell body to other neurons or target cells. Dendrites, on the other hand, receive signals from other neurons and transmit them towards the cell body. Schwann cells are responsible for producing the myelin sheath that surrounds and insulates the axon. The synapse is the junction between two neurons where the transmission of signals occurs. Therefore, the correct answer is axon.

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  • 7. 
    The part labled C is the... - ProProfs

    The part labled C is the...

    • Cerebrum

    • Cerebellum

    • Brain stem

    • Spinal cord

    Correct Answer
    A. Spinal cord
    Explanation
    The given answer, "Spinal cord," is correct because the question asks for the part labeled "C," and the spinal cord is the only option labeled as such. The cerebrum, cerebellum, and brain stem are not labeled as "C" in the question. Therefore, the correct answer is the spinal cord.

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  • 8. 

    The peripheral nervous system includes the brain and spinal cord.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    It includes the sensory and motor neurons as well as autonomic nerves serving the lungs, heart, and other self-regulating organs.

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  • 9. 

    Which activity does your cerebrum control?

    • Remembering math equations

    • Breathing as you sleep

    • Keeping your balance

    • An increase in heart rate after running

    Correct Answer
    A. Remembering math equations
    Explanation
    The cerebrum is responsible for higher cognitive functions, including memory and problem-solving. Remembering math equations falls under the domain of memory, which is controlled by the cerebrum.

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  • 10. 

    Because of the way in which the lens of the eye bends light rays, the image produced by the lens is...

    • Black and white

    • Usually blurred

    • Upside down

    • A mirror image

    Correct Answer
    A. Upside down
    Explanation
    The lens of the eye bends light rays in such a way that the image produced is upside down. This is due to the way the lens focuses light onto the retina at the back of the eye. The brain then processes this inverted image and flips it right side up, allowing us to perceive the world correctly.

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  • 11. 

    A muscle contracts in response to an impulse carried by the type of neuron known as a(n) ___________ neuron.

    Correct Answer
    Motor
    Explanation
    A muscle contracts in response to an impulse carried by a motor neuron. Motor neurons are responsible for transmitting signals from the central nervous system to the muscles, allowing for voluntary movement. When an impulse is sent from the motor neuron to the muscle, it triggers a series of events that result in muscle contraction. Therefore, the correct answer is motor.

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  • 12. 

    A synapse is the space between...

    • One cell and another cell

    • An axon and the structure that receives the nerve impulse

    • A dendrite and the cell body

    • An axon and the cell body

    Correct Answer
    A. A dendrite and the cell body
    Explanation
    A synapse is the space between a dendrite and the cell body. This is where the transmission of signals occurs between neurons. Dendrites receive signals from other neurons and transmit them to the cell body, which then processes the information and sends it further along the neuron. The synapse plays a crucial role in communication between neurons and is essential for the functioning of the nervous system.

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  • 13. 

    In the part of the inner ear called the ________________, receptors convert sound vibrations into nerve impulses.

    Correct Answer
    cochlea
    Explanation
    The cochlea is a part of the inner ear that contains receptors responsible for converting sound vibrations into nerve impulses. These receptors, called hair cells, are located within the cochlea's spiral-shaped structure. As sound waves enter the cochlea, they cause the hair cells to vibrate. These vibrations are then converted into electrical signals that are transmitted to the brain via the auditory nerve, allowing us to perceive and interpret sound.

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  • 14. 

    A motor neuron sends an impulse to...

    • A muscle or gland

    • A sensory neuron

    • An interneuron

    • Another motor neuron

    Correct Answer
    A. An interneuron
    Explanation
    An interneuron is a type of neuron that serves as a connector between other neurons. It receives impulses from sensory neurons and sends them to motor neurons or other interneurons. In this case, the motor neuron is sending an impulse to an interneuron, which suggests that it is relaying the impulse to another neuron rather than directly controlling a muscle or gland.

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  • 15. 
    Structure A is... Structure B is... Structure C is... Structure D is... - ProProfs

    Structure A is... Structure B is... Structure C is... Structure D is...

    Correct Answer
    A is the Lens B is the Optic nerve C is the Retina D is the Iris
    Explanation
    The given answer correctly identifies the structures A, B, C, and D as the Lens, Optic nerve, Retina, and Iris respectively. The lens is a transparent structure that focuses light onto the retina. The optic nerve carries visual information from the retina to the brain. The retina is the light-sensitive layer at the back of the eye that contains photoreceptor cells. The iris is the colored part of the eye that controls the size of the pupil.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 29, 2011
    Quiz Created by
    Wthompsonctems
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