Overview Of Generic Drugs Questions! Quiz
- 1.
The science that studies drugs and their origin, nature, chemistry, uses and their effect on the function of living systems is
- A.
Pharmacokinetics
- B.
Pharmacology
- C.
Pharmacodynamics
- D.
Physiology
Correct Answer
B. pHarmacologyExplanation
Pharmacology is the correct answer because it is the science that specifically focuses on the study of drugs. It encompasses the origin, nature, chemistry, uses, and effects of drugs on living systems. Pharmacokinetics, on the other hand, is a branch of pharmacology that studies the movement of drugs within the body, while pharmacodynamics focuses on the effects of drugs on the body. Physiology is a broader field that studies the normal functions of living organisms.Rate this question:
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- 2.
Source of penicillin antibiotic is
- A.
Animal source
- B.
Plant source
- C.
Minerals
- D.
Microrganism
Correct Answer
D. MicrorganismExplanation
Penicillin antibiotic is sourced from microorganisms. This is because penicillin is a naturally occurring compound produced by certain species of fungi, specifically Penicillium fungi. These fungi produce penicillin as a defense mechanism against bacteria, and scientists have been able to isolate and extract the antibiotic compound for medicinal use.Rate this question:
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- 3.
One of the following is false about chemical drug name
- A.
Given by the international organisation
- B.
Long and rarely used
- C.
Include information about the drugs
- D.
Depends on the chemical structure
Correct Answer
A. Given by the international organisationExplanation
Chemical drug names are not given by international organizations. They are typically assigned by the United States Adopted Names (USAN) Council or the International Nonproprietary Names (INN) system. These organizations provide standardized names for drugs to ensure consistency and accuracy in communication. The names are usually based on the drug's chemical structure or its pharmacological properties. Therefore, the statement "given by the international organization" is false.Rate this question:
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- 4.
Revanin is an example of
- A.
Chemical name
- B.
Approved name
- C.
Generic name
- D.
2+3
Correct Answer
D. 2+3 -
- 5.
The pharmacologists use
- A.
Generic name
- B.
Chemical name
- C.
Commercial name
- D.
Trade name
Correct Answer
A. Generic nameExplanation
Pharmacologists use generic names to identify and classify drugs based on their active ingredients. Generic names are standardized and universally recognized, allowing healthcare professionals to easily communicate and prescribe medications. Unlike commercial or trade names, which are specific to a particular brand or manufacturer, generic names are independent of any brand and can be used to refer to multiple versions of the same drug. This ensures consistency and accuracy in prescribing and dispensing medications.Rate this question:
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- 6.
One of the following is mismatched
- A.
Oral route : placed in mouth and swallowed
- B.
Sublingual route : placed in the mouth and not-swallowed
- C.
Topical : for systemic effect
- D.
Parenteral : IV or IM
Correct Answer
C. Topical : for systemic effectExplanation
The given answer is correct because the term "topical" refers to a route of administration where the medication is applied externally to the skin or mucous membranes. It is intended to have a local effect on the area it is applied to, rather than being absorbed into the bloodstream for systemic effect. Therefore, the statement "topical: for systemic effect" is a mismatch and incorrect.Rate this question:
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- 7.
One of the following is a process in pharmacokinetics.
- A.
Indication
- B.
Absorption
- C.
Mechanism of action
- D.
Non of them
Correct Answer
B. AbsorptionExplanation
Absorption is a process in pharmacokinetics where a drug enters the bloodstream and reaches its target site. It involves the movement of the drug from the site of administration (such as the gastrointestinal tract or skin) into the bloodstream. This process is crucial as it determines the rate and extent of drug absorption, which in turn affects the drug's effectiveness and onset of action.Rate this question:
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- 8.
Laxatives are working on which system?
- A.
RS
- B.
GIT
- C.
CVS
- D.
CNs
Correct Answer
B. GITExplanation
Laxatives are medications that are used to treat constipation by promoting bowel movements. They work on the gastrointestinal tract (GIT) by either increasing the water content in the stool, stimulating bowel contractions, or softening the stool. Therefore, the correct answer is GIT.Rate this question:
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- 9.
He skeletal system is made up of
- A.
603
- B.
306
- C.
209
- D.
206
Correct Answer
D. 206Explanation
The skeletal system is made up of 206 bones. These bones provide support and structure to the body, protect vital organs, and allow for movement. They also play a role in the production of blood cells and store minerals such as calcium. The number 206 accurately represents the total number of bones in the human body.Rate this question:
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- 10.
All of the following are considered functions of bones except
- A.
Blood formation
- B.
Mineral storage
- C.
Support
- D.
Non of the above
Correct Answer
D. Non of the aboveExplanation
Bones have multiple functions in the body, including blood formation, mineral storage, and support. Therefore, the correct answer is "non of the above" as all of the listed options are functions of bones.Rate this question:
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- 11.
Bones of the hand "phalanges" are
- A.
Short bone
- B.
Long bones
- C.
Flat bones
- D.
Irregular bones
Correct Answer
B. Long bonesExplanation
The phalanges, which are the bones of the hand, are classified as long bones. Long bones are characterized by their elongated shape, with a shaft (diaphysis) and two ends (epiphyses). They provide support, facilitate movement, and contribute to the body's overall structure. The phalanges are considered long bones because they have a similar structure to other long bones in the body, such as the femur and humerus.Rate this question:
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- 12.
The most important type of joints is
- A.
Cartilaginous
- B.
Fibrous
- C.
Synovial
Correct Answer
C. SynovialExplanation
Synovial joints are the most important type of joints in the human body. These joints allow for a wide range of movement and are found in areas such as the knees, elbows, and shoulders. They are characterized by the presence of a synovial fluid-filled cavity, which lubricates the joint and reduces friction during movement. Synovial joints also have a joint capsule and articular cartilage, which help to stabilize the joint and absorb shock. This type of joint allows for smooth and controlled movement, making it essential for activities such as walking, running, and lifting.Rate this question:
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- 13.
Which bone has three parts (squamous, zygomatic, petrous)
- A.
Frontal
- B.
Occipital
- C.
Parietal
- D.
Temporal
Correct Answer
D. TemporalExplanation
The correct answer is temporal. The temporal bone is a large bone located on the sides and base of the skull. It is divided into three parts: the squamous part, which forms the side of the skull; the zygomatic part, which forms part of the cheekbone; and the petrous part, which houses the middle and inner ear structures.Rate this question:
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- 14.
The keystone bone of the skull is
- A.
Temporal
- B.
Frontal
- C.
Sphenoid
- D.
Nasal
Correct Answer
C. SpHenoidExplanation
The keystone bone of the skull is the sphenoid. The sphenoid bone is located at the base of the skull, towards the middle, and is often referred to as the "keystone" because it connects to and supports many other bones of the skull. It forms part of the floor of the cranium, the sides of the skull, and the base of the eye sockets. Its shape and position make it a crucial bone for maintaining the structural integrity of the skull and providing attachment points for various muscles and ligaments.Rate this question:
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- 15.
Muscles that are found around the eye are called
- A.
Orbicularis oculi
- B.
Orbicularis oris
- C.
Buccinator muscles
- D.
Palatoglossus muscle
Correct Answer
A. Orbicularis oculiExplanation
The muscles that are found around the eye are called orbicularis oculi.Rate this question:
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- 16.
The most powerful muscle in the human is
- A.
Suprahyoid muscle
- B.
Infrahyoid muscle
- C.
Masseter muscle
- D.
Buccinator muscle
Correct Answer
C. Masseter muscleExplanation
The masseter muscle is considered the most powerful muscle in the human body. It is responsible for the movement of the jaw and is involved in biting and chewing food. This muscle is located in the jaw area and is capable of exerting a significant amount of force. It is essential for proper functioning of the mouth and plays a crucial role in the process of digestion.Rate this question:
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- 17.
Which muscle covers the shoulder
- A.
Latissmus dorsi
- B.
Trapezius
- C.
Deltoid
- D.
Pectoralois major
Correct Answer
C. DeltoidExplanation
The deltoid muscle covers the shoulder. It is a large, triangular muscle located on the uppermost part of the arm and shoulder. It is responsible for the abduction, flexion, and extension of the shoulder joint. The deltoid muscle gives the shoulder its rounded shape and is involved in various arm movements, such as lifting, throwing, and pushing.Rate this question:
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- 18.
Urine formation and concentration take place in
- A.
Urinary bladder
- B.
Urethra
- C.
Kidney
- D.
Uretur
Correct Answer
C. KidneyExplanation
Urine formation and concentration take place in the kidney. The kidneys are responsible for filtering waste products, excess water, and toxins from the blood to form urine. They regulate the concentration of various substances in the body by reabsorbing necessary molecules and excreting waste products. The urine then travels from the kidneys to the urinary bladder through the ureters and is eventually eliminated from the body through the urethra.Rate this question:
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- 19.
Left kidney is lower than right kidney because the liver compresses it downs
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement that the left kidney is lower than the right kidney because the liver compresses it down is false. The position of the kidneys is not determined by the liver compressing them. The kidneys are naturally positioned at different heights in the body due to anatomical factors and are not affected by the liver's position.Rate this question:
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- 20.
On of the following supports and keeps the kidney in its position
- A.
Renal fascia
- B.
Pararenal fat
- C.
Renal hilum
- D.
Renal capsule
Correct Answer
A. Renal fasciaExplanation
The renal fascia is a layer of connective tissue that surrounds the kidney and helps to support and hold it in its position. It provides stability and protection for the kidney, keeping it in place within the abdominal cavity. The other options, pararenal fat, renal hilum, and renal capsule, do not directly support or keep the kidney in its position.Rate this question:
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- 21.
The main blood supply artery in male reproductive system is
- A.
External pudendal artery
- B.
Interanal pudendal artery
- C.
pudendal artery
- D.
Common iliac artery
Correct Answer
B. Interanal pudendal arteryExplanation
The correct answer is the internal pudendal artery. This artery is responsible for supplying blood to the male reproductive system, including the penis and scrotum. It branches off from the internal iliac artery and runs through the pelvis before reaching the genital area. It plays a crucial role in maintaining proper blood flow to the reproductive organs, which is essential for their normal functioning.Rate this question:
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- 22.
The function of sertoli cells
- A.
Produces mature sperms
- B.
Nourishment of sperms
- C.
Secretes testosteron hormone
- D.
Regulates the effect of inhibition
Correct Answer
B. Nourishment of spermsExplanation
Sertoli cells are responsible for providing nourishment to developing sperm cells. They form a supportive environment within the seminiferous tubules of the testes, where sperm production takes place. Sertoli cells provide essential nutrients and factors needed for sperm development, including the production of proteins and enzymes required for sperm maturation. They also help in the transport and release of mature sperm cells into the epididymis for further maturation and storage. Therefore, the function of Sertoli cells is the nourishment of sperms.Rate this question:
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- 23.
The ligament between ovary and pelvic wall is
- A.
Broad ligament
- B.
Ovarian ligament
- C.
Suspensory ligament
Correct Answer
C. Suspensory ligamentExplanation
The suspensory ligament is the correct answer because it is the ligament that connects the ovary to the pelvic wall. The broad ligament is a different ligament that supports the uterus, while the ovarian ligament connects the ovary to the uterus. Therefore, the suspensory ligament is the only option that correctly describes the ligament between the ovary and pelvic wall.Rate this question:
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- 24.
Stores sperms and transports them
- A.
Epididymus
- B.
Testes
- C.
Prostate
- D.
Uretur
Correct Answer
A. EpididymusExplanation
The correct answer is epididymus. The epididymis is a coiled tube located on the back of each testicle. Its main function is to store and transport sperm. Sperm produced in the testes move through the epididymis, where they mature and become capable of fertilizing an egg. From the epididymis, the sperm then travel through the vas deferens and eventually reach the urethra for ejaculation.Rate this question:
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- 25.
In listening we use more than one level of senses
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In listening, we use more than one level of senses. This is because listening involves not only hearing the sounds, but also interpreting and understanding the meaning behind the words or sounds. It requires the use of cognitive processes such as attention, perception, and comprehension. Additionally, listening also involves the use of non-verbal cues and body language to understand the speaker's message. Therefore, it can be concluded that listening utilizes multiple levels of senses to fully comprehend and interpret the information being communicated.Rate this question:
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- 26.
One of the following is not a specific type of listening
- A.
Informational
- B.
Comprehesive
- C.
Critical
Correct Answer
B. ComprehesiveExplanation
The correct answer is "comprehensive." Comprehensive listening is not a specific type of listening. The other options, informational and critical listening, refer to specific types of listening that involve gathering information or evaluating and analyzing information respectively.Rate this question:
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- 27.
The most common specific type of listening is
- A.
Critical
- B.
Therapeutic
- C.
Comprehensive
- D.
Informational
Correct Answer
D. InformationalExplanation
The most common specific type of listening is informational. This type of listening involves actively seeking and processing information, such as when we listen to lectures, news broadcasts, or instructions. It is focused on understanding and retaining the information being communicated. Critical listening, on the other hand, involves analyzing and evaluating the information being presented. Therapeutic listening refers to listening in a supportive and empathetic manner, often used in counseling or therapy sessions. Comprehensive listening refers to listening with the intent to understand and consider all aspects of a message.Rate this question:
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- 28.
Which of the following is considered as a principle of effective listening
- A.
Prepare yourself to listen
- B.
Effective body language
- C.
Remove distractors
- D.
All of them are correct
Correct Answer
D. All of them are correctExplanation
All of the options mentioned - preparing yourself to listen, using effective body language, and removing distractors - are considered principles of effective listening. Preparing yourself to listen involves being mentally and emotionally ready to focus on the speaker. Effective body language, such as maintaining eye contact and nodding, shows the speaker that you are engaged and attentive. Removing distractors, such as turning off electronic devices or finding a quiet environment, helps to eliminate potential disruptions and allows for better concentration on the speaker's message. Therefore, all of these principles contribute to effective listening.Rate this question:
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- 29.
Discriminative type of listening is considered a general type
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement that discriminative type of listening is considered a general type is true. Discriminative listening refers to the ability to distinguish and interpret different sounds and tones in spoken language. It involves paying attention to the details of the message, such as pronunciation, intonation, and emphasis. This type of listening is essential for understanding and interpreting verbal communication accurately, and it is considered a fundamental skill in effective communication.Rate this question:
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- 30.
The small structural and functional unit of organs is
- A.
Atoms
- B.
Cells
- C.
Molecules
- D.
Organs
Correct Answer
B. CellsExplanation
Cells are the small structural and functional units of organs. They are the building blocks of life and are responsible for carrying out all the necessary functions within an organism. Cells can vary in size, shape, and function depending on their specialized roles in different organs. They work together to form tissues, organs, and ultimately, the entire organism. Cells contain various organelles and molecules that enable them to perform specific functions such as metabolism, reproduction, and response to stimuli. Therefore, cells are the correct answer as they are the fundamental units that make up organs.Rate this question:
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- 31.
Which type of tissue we can find it in outer surfaces of organ and inner surfaces of cavities
- A.
Connective tissue
- B.
Muscular tissue
- C.
Epithelial tissue
- D.
Nervous tissue
Correct Answer
C. Epithelial tissueExplanation
Epithelial tissue is found in the outer surfaces of organs and the inner surfaces of cavities. This tissue acts as a protective barrier, preventing the entry of harmful substances and microorganisms. It also helps in the absorption and secretion of substances. Epithelial tissue is composed of tightly packed cells that are closely attached to each other, forming continuous sheets. It can be found in various forms, such as squamous (flat), cuboidal (cube-shaped), and columnar (column-shaped), depending on its location and function.Rate this question:
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- 32.
The largest organ of the body is
- A.
Skin
- B.
Liver
- C.
Heart
- D.
Lungs
Correct Answer
A. SkinExplanation
The correct answer is skin. The skin is the largest organ of the body, covering the entire external surface. It serves as a protective barrier against harmful substances, regulates body temperature, and helps in the excretion of waste products through sweat. The skin also contains sensory receptors that allow us to feel touch, pressure, and pain.Rate this question:
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- 33.
Spleen, thymus, tonsils are considered from which system
- A.
Skeletal
- B.
Endocrine
- C.
Gastrointestinal
- D.
Lymphatics
Correct Answer
D. LympHaticsExplanation
The spleen, thymus, and tonsils are all part of the lymphatic system. The lymphatic system is responsible for maintaining fluid balance in the body, as well as filtering out harmful substances and producing immune cells. The spleen acts as a filter for the blood, removing old or damaged red blood cells and producing white blood cells. The thymus is involved in the development of T-cells, which are important for immune function. The tonsils are a part of the immune system and help to protect against infections. Therefore, the correct answer is lymphatics.Rate this question:
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- 34.
The heart is ............ to the liver and ......... to the breast bone
- A.
Superior , anterior
- B.
Superior , posterior
- C.
Inferior , anterior
- D.
Inferior , posterior
Correct Answer
B. Superior , posteriorExplanation
The heart is positioned superior to the liver, meaning it is located above the liver. Additionally, the heart is positioned posterior to the breast bone, which means it is located behind the breast bone.Rate this question:
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- 35.
The lungs are ....... to the heart
- A.
Superior
- B.
Lateral
- C.
Medial
- D.
Posterior
Correct Answer
B. LateralExplanation
The correct answer is "lateral". The lungs are positioned on the sides of the heart, which makes them lateral to the heart.Rate this question:
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- 36.
All of the following are considered as a standard anatomical position except
- A.
Eyes facing forward
- B.
Upright erect
- C.
Palms facing backwards
- D.
The thumb is lateral and the small finger medial
Correct Answer
C. Palms facing backwardsExplanation
The standard anatomical position refers to the body standing upright, facing forward, with the palms facing forward as well. This position allows for consistent and accurate anatomical descriptions and references. Therefore, palms facing backwards would not be considered a standard anatomical position.Rate this question:
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- 37.
The midsagittal plane is
- A.
Divides the organ into unequal left and right sides
- B.
Divides the organ into equal left and right sides
- C.
Divides the organ into equal front and back sides
- D.
Divides the organ into unequal front and back sides
Correct Answer
B. Divides the organ into equal left and right sidesExplanation
The midsagittal plane is a vertical plane that divides the organ into equal left and right sides. This means that if the organ is cut along this plane, both halves will be symmetrical and mirror images of each other.Rate this question:
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- 38.
The right order for the gastrointestinal tract is
- A.
Mouth > pharynx > esophagus > stomach> jejunum > duodenum > ilium > large intestine > anus
- B.
Mouth > pharynx > esophagus > stomach> large intestine > jejunum > duodenum > ilium > anus
- C.
Mouth > pharynx > esophagus > stomach> duodenum > jejunum > ilium > large intestine > anus
- D.
Mouth > esophagus > pharynx > stomach> duodenum > jejunum > ilium > large intestine > anus
Correct Answer
C. Mouth > pHarynx > esopHagus > stomach> duodenum > jejunum > ilium > large intestine > anusExplanation
The correct answer is the last option: mouth > pharynx > esophagus > stomach > duodenum > jejunum > ilium > large intestine > anus. This order represents the correct sequence of organs in the gastrointestinal tract, starting from the mouth where food enters, passing through the pharynx and esophagus to reach the stomach. From the stomach, the food then moves to the duodenum, jejunum, and ilium, which are parts of the small intestine. Finally, the remaining waste enters the large intestine and is eliminated through the anus.Rate this question:
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- 39.
A muscular organ which occupies the floor of the mouth is
- A.
Pharynx
- B.
Tongue
- C.
Larynx
- D.
Buccal cavity
Correct Answer
B. TongueExplanation
The tongue is a muscular organ that is located in the floor of the mouth. It plays a crucial role in various functions such as tasting, chewing, swallowing, and speaking. The tongue is made up of several muscles that allow it to move freely and perform these functions effectively. It is covered with taste buds that help in the perception of taste. Additionally, the tongue also aids in the production of certain speech sounds by manipulating airflow and positioning itself against different parts of the mouth.Rate this question:
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- 40.
The longest part of the small intestine is
- A.
Duodenum
- B.
Jejunum
- C.
Ilium
- D.
Non of them
Correct Answer
C. IliumExplanation
The correct answer is ileum. The small intestine is divided into three parts: the duodenum, jejunum, and ileum. Among these three, the ileum is the longest part of the small intestine. It is located between the jejunum and the large intestine.Rate this question:
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- 41.
All of the following are lobes of the liver except
- A.
Left lobe
- B.
Caudate lobe
- C.
Quadrate lobe
- D.
Inferior lobe
Correct Answer
D. Inferior lobe -
- 42.
The brain is consist of ..... major part
- A.
Three
- B.
Four
- C.
Five
- D.
Two
Correct Answer
B. FourExplanation
The brain consists of four major parts.Rate this question:
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- 43.
Inflammation of the membranes surrounding the brain and spinal cord is
- A.
Concussion
- B.
Meningitis
- C.
Alzheimer disease
- D.
Epilepsy
Correct Answer
B. MeningitisExplanation
Meningitis is the correct answer because it refers to the inflammation of the membranes surrounding the brain and spinal cord. This condition is usually caused by a viral or bacterial infection and can lead to symptoms such as fever, headache, stiff neck, and sensitivity to light. Concussion, Alzheimer's disease, and epilepsy are not directly related to inflammation of the membranes surrounding the brain and spinal cord, making them incorrect options.Rate this question:
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- 44.
Hemiplegia is paralysis of the lower portion of the body
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Hemiplegia is actually paralysis of one side of the body, not just the lower portion. It affects one arm and one leg on the same side of the body, rather than just the lower portion. Therefore, the statement that hemiplegia is paralysis of the lower portion of the body is false.Rate this question:
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- 45.
Which of the following glans is located on base of the brain on sella turcica
- A.
Pituitary gland
- B.
Pineal gland
- C.
Endocrine pancreas
- D.
Thyroid
Correct Answer
A. Pituitary glandExplanation
The pituitary gland is located at the base of the brain on the sella turcica. It is responsible for producing and releasing hormones that regulate various bodily functions, including growth, metabolism, reproduction, and stress response. The pineal gland, on the other hand, is located in the brain but not on the sella turcica. The endocrine pancreas is located in the abdomen, and the thyroid is located in the neck.Rate this question:
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- 46.
Suprarenal gland is the other name for
- A.
Pituitary
- B.
Thymus
- C.
Ovaries
- D.
Adrenal gland
Correct Answer
D. Adrenal glandExplanation
The correct answer is adrenal gland. The suprarenal gland is another term used to refer to the adrenal gland. The adrenal glands are located on top of the kidneys and are responsible for producing hormones such as adrenaline, cortisol, and aldosterone. These hormones play crucial roles in regulating metabolism, blood pressure, and stress response in the body.Rate this question:
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- 47.
Orchidectomy means
- A.
Decrease in pituitary secretion
- B.
Excision of ovaries
- C.
Excision of testis
- D.
Inflammation of the testis
Correct Answer
C. Excision of testisExplanation
Orchidectomy refers to the surgical removal of one or both testicles. This procedure is typically performed for medical reasons, such as the treatment of testicular cancer or to prevent the spread of certain diseases. It is not related to a decrease in pituitary secretion, inflammation of the testis, or the excision of ovaries. The correct answer is "Excision of testis."Rate this question:
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- 48.
Cushing syndrome is
- A.
Hypo secretion of cortisol
- B.
Hyper secretion of cortisol
- C.
Hyper secretion of insulin
- D.
Hyper secretion of growth hormone
Correct Answer
B. Hyper secretion of cortisolExplanation
Cushing syndrome is characterized by the excessive production of cortisol, a hormone that is normally released by the adrenal glands. This hyper secretion of cortisol can be caused by various factors such as prolonged use of corticosteroid medications, tumors in the adrenal glands or pituitary gland, or certain genetic conditions. The excessive levels of cortisol in the body can lead to a variety of symptoms including weight gain, high blood pressure, muscle weakness, and mood changes. Therefore, the correct answer is hyper secretion of cortisol.Rate this question:
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- 49.
One of the following connects nasal cavity with larynx
- A.
Nose
- B.
Bronchi
- C.
Pharynx
- D.
Trachea
Correct Answer
C. pHarynxExplanation
The pharynx is the correct answer because it connects the nasal cavity with the larynx. The pharynx is a muscular tube that is located behind the nasal cavity and mouth, and it serves as a passage for both air and food. It connects the nasal cavity to the larynx, which is part of the respiratory system and is responsible for the production of sound.Rate this question:
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- 50.
One of the following structure has Fibro-elastic membrane supported by C-shaped Hyaline Cartilage
- A.
Alveoli
- B.
Trachea
- C.
Larynx
- D.
Nose
Correct Answer
B. TracheaExplanation
The correct answer is trachea. The trachea is a tube-like structure that connects the larynx (voice box) to the bronchi in the lungs. It is composed of rings of hyaline cartilage that are shaped like the letter "C." These cartilage rings provide support and prevent the trachea from collapsing during breathing. The trachea also has a fibro-elastic membrane that helps to maintain its shape and flexibility.Rate this question:
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