CNS - Cranial Nerves (name)

Question 1

Olfactory

Answer 1

I; Sensory; Innervates olfactory epithelium

Question 2

Optic

Answer 2

II; Sensory; Innervates retina of eye

Question 3

Oculomotor

Answer 3

III; Motor; Innervates inferior, medial, superior rectus, inferior oblique, and levator palpebrae muscles; intrinsic muscles of eye

Question 4

Trochlear

Answer 4

IV; Motor; Innervates superior oblique muscle

Question 5

Trigeminal

Answer 5

V; Mixed; Face

Question 6

Abducens

Answer 6

VI; Motor; Innervates lateral rectus muscle

Question 7

Facial

Answer 7

VII; Mixed; Innervates taste receptors, facial expression, lacrimal gland, salivary glands

Question 8

Vestibulocochlear

Answer 8

VIII; Sensory; Innervates inner ear: cochlea (hearing) & vestibule (motion & balance)

Question 9

Glossopharyngeal

Answer 9

IX; Mixed; Innervates tongue, pharynx, palate, carotid body (monitors blood pressure, pH, & levels of respiratory gases), pharyngeal muscles, parotid salivary gland

Question 10

Vagus

Answer 10

X; Mixed; Innervates pharynx, auricle & external acoustic meatus, diaphragm, visceral organs in thoracic and abdominopelvic cavities, palatal, and pharyngeal muscles

Question 11

Accessory

Answer 11

XI; Motor; Innervates palate, pharynx, larynx, sternocleidomastoid & trapezius muscles

Question 12

Hypoglossal

Answer 12

XII; Motor; Innervates tongue musculature