The Circle Of Willis
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Questions and Answers
- 1.
What is the function of Cranial Nerve I?
- A.
Smell
- B.
Vision
- C.
Pain
- D.
Hearing
Correct Answer
A. SmellExplanation
Cranial Nerve I, also known as the olfactory nerve, is responsible for the sense of smell. It transmits information from the olfactory receptors in the nose to the brain, allowing us to detect and identify different odors. This nerve plays a crucial role in our ability to perceive and distinguish various scents in our environment.Rate this question:
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- 2.
What is the function of Cranial Nerve II?
- A.
Smell
- B.
Touch
- C.
Taste
- D.
Vision
Correct Answer
D. VisionExplanation
Cranial Nerve II, also known as the optic nerve, is responsible for the sense of vision. It carries visual information from the retina of the eye to the brain, allowing us to perceive and interpret visual stimuli. This nerve plays a crucial role in our ability to see and perceive the world around us.Rate this question:
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- 3.
What is the function of Cranial Nerve III?
- A.
Eyelid movement
- B.
Eyeball movement
- C.
Turns eyes laterally
- D.
Both A and B
Correct Answer
D. Both A and BExplanation
Cranial Nerve III, also known as the oculomotor nerve, is responsible for controlling the movement of the eyelids (eyelid movement) as well as the movement of the eyeball (eyeball movement). Therefore, the correct answer is both A and B.Rate this question:
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- 4.
What is the function of Cranial Nerve V?
- A.
Chewing
- B.
Face & mouth
- C.
Touch & pain
- D.
All the above
Correct Answer
D. All the aboveExplanation
Cranial Nerve V, also known as the Trigeminal nerve, serves multiple functions. It is responsible for the sensation of touch and pain in the face and mouth region. Additionally, it controls the muscles involved in chewing. Therefore, the correct answer is "all the above" as it encompasses all the functions performed by Cranial Nerve V.Rate this question:
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- 5.
What is the function of Cranial Nerve VI?
- A.
Turns eyes laterally
- B.
Turns eyes medially
- C.
Turns eye upward
- D.
Turns eyes downward
Correct Answer
A. Turns eyes laterallyExplanation
Cranial Nerve VI, also known as the Abducens nerve, is responsible for the lateral movement of the eyes. It controls the action of the lateral rectus muscle, which is responsible for turning the eye outward, away from the nose. When this nerve is functioning properly, it allows for the coordination of eye movements and helps maintain binocular vision.Rate this question:
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- 6.
What is the function of Cranial Nerve VIII?
- A.
Hearing
- B.
Taste
- C.
Equilibrium
- D.
Both A and C
Correct Answer
D. Both A and CExplanation
Cranial Nerve VIII, also known as the Vestibulocochlear nerve, serves multiple functions. One of its functions is hearing, as it transmits sound information from the cochlea to the brain. Additionally, it is responsible for equilibrium, which involves maintaining balance and spatial orientation. Therefore, the correct answer is "Both A and C" because Cranial Nerve VIII is involved in both hearing and equilibrium.Rate this question:
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- 7.
What is the function of Cranial Nerve IX?
- A.
Taste and senses carotid blood pressure
- B.
Taste and aortic blood pressure
- C.
Taste and lowers heart rate
- D.
All of the Above
Correct Answer
A. Taste and senses carotid blood pressureExplanation
Cranial Nerve IX, also known as the glossopharyngeal nerve, is responsible for taste sensation and monitoring carotid blood pressure. This nerve carries taste information from the back of the tongue to the brain and also contains sensory fibers that detect changes in blood pressure in the carotid artery. Therefore, it is involved in both taste perception and monitoring blood pressure in the carotid artery.Rate this question:
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- 8.
What is the function of Cranial Nerve XII?
- A.
Digestive organs
- B.
Controls swallowing movements
- C.
Controls tongue movements
- D.
Taste
Correct Answer
C. Controls tongue movementsExplanation
Cranial Nerve XII, also known as the Hypoglossal nerve, is responsible for controlling the movements of the tongue. This nerve plays a crucial role in enabling us to move our tongues in various directions, allowing us to speak, chew, and swallow properly. Dysfunction of Cranial Nerve XII can lead to difficulties in controlling the tongue, resulting in speech and swallowing problems.Rate this question:
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Current Version
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Mar 03, 2023Quiz Edited by
ProProfs Editorial Team -
Aug 15, 2015Quiz Created by
Flontana
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