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Cranial Nerve Function and Anatomy Quiz

#1

Which cranial nerve is responsible for the sense of smell?

Olfactory nerve (I)
Explanation

Sense of smell

#2

Which cranial nerve is responsible for controlling most of the muscles involved in eye movement?

Oculomotor nerve (III)
Explanation

Eye movement control

#3

Which cranial nerve innervates the muscles of mastication?

Trigeminal nerve (V)
Explanation

Muscles of mastication

#4

Damage to which cranial nerve can cause difficulty in swallowing, loss of taste, and decreased secretion of saliva?

Glossopharyngeal nerve (IX)
Explanation

Swallowing, taste, saliva

#5

Which cranial nerve is responsible for controlling the muscles of facial expression and conveying taste sensations from the anterior two-thirds of the tongue?

Facial nerve (VII)
Explanation

Facial muscles, taste

#6

Damage to which cranial nerve can lead to weakness or paralysis of the muscles of the tongue?

Hypoglossal nerve (XII)
Explanation

Tongue muscles

#7

Which cranial nerve is responsible for controlling the muscles involved in swallowing and for providing sensation to the posterior one-third of the tongue?

Glossopharyngeal nerve (IX)
Explanation

Swallowing muscles, posterior tongue sensation

#8

Which cranial nerve is responsible for controlling the sternocleidomastoid and trapezius muscles?

Accessory nerve (XI)
Explanation

Sternocleidomastoid, trapezius muscles

#9

Which cranial nerve is responsible for the sense of hearing and balance?

Vestibulocochlear nerve (VIII)
Explanation

Hearing, balance

#10

Which cranial nerve is responsible for controlling the muscles of the pharynx and larynx, as well as for sensation from the skin of the external ear and the walls of the pharynx and larynx?

Vagus nerve (X)
Explanation

Pharynx, larynx muscles, ear sensation

#11

Damage to which cranial nerve can result in difficulty in speaking, hoarseness, and impaired swallowing?

Vagus nerve (X)
Explanation

Speaking, swallowing

#12

Which cranial nerve is the only one to emerge dorsally from the brainstem (the dorsal surface)?

Trochlear nerve (IV)
Explanation

Dorsal emergence

#13

Damage to which cranial nerve can result in difficulty in turning the head and lifting the shoulders?

Accessory nerve (XI)
Explanation

Head turning, shoulder lifting

#14

Which cranial nerve innervates the muscles of the soft palate, pharynx, and larynx, and also controls parasympathetic functions in the thoracic and abdominal viscera?

Vagus nerve (X)
Explanation

Soft palate, pharynx, larynx muscles, parasympathetic control

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