export_cranial nerve flashcards

Question 1

I - Olfactory Nerve

Answer 1

Carries input from receptors in smell neuroepithelium. Not a true nerve

Question 2

II - Optic Nerve

Answer 2

Carries input from receptors in eye. Not a true nerve.

Question 3

III - Oculomotor Nerve

Answer 3

Innervates skeletal muscles that move eye up, down, medially. Raise upper eyelid; constricts pupil and alters lens shape for near/far vision.

Question 4

IV - Trochlear Nerve

Answer 4

Innervates skeletal muscles that move eye downward and laterally.

Question 5

V - Trigeminal Nerve

Answer 5

Innervates skeletal chewing muscles - Efferent

Transmits info from receptors in skin; skeletal muscles of face, nose, mouth, teeth sockets - Afferent

Question 6

VI - Abducens Nerve

Answer 6

Innervates skeletal muscles that move eye laterally.

Question 7

VII - Facial Nerve

Answer 7

Innervates skeletal muscles of facial expression and swallowing; innervates nose, palate, lacrimal gland, salivary gland - Efferent

Transmits info from taste buds in front of tongue and mouth - Afferent

Question 8

VIII - Vestibulocochlear

Answer 8

Innervates receptors (outer hair cells) in ear - Efferent

Transmits information from receptors in the ear - Afferent

Question 9

IX - Glossopharyngeal

Answer 9

Innervates skeletal muscles involved in swallowing and parotid salivary gland - Efferent

Transmits info from taste buds at back of tongue and receptors in auditory-tube skin - Afferent

Question 10

X - Vagus

Answer 10

Innervates skeletal muscles of pharynx and larynx and smooth muscle and glands of thorax and abdomen - Efferent

Transmits information from receptors in thorax and abdomen - Afferent

Question 11

XI - Accessory

Answer 11

Innervates neck skeletal muscles

Question 12

XII - Hypoglossal

Answer 12

Innervates skeletal muscles of tongue.