Cranial Nerves 👸🏾

Question 1

Cranial Nerve II

Answer 1

Optic (sensory)

Vision from the retina

Optic nerves -> optic chiasma-> optic tract

Question 2

Cranial Nerve III

Answer 2

Oculomotor (motor)

Supplies motor fibers to four of the extrinsic muscles that move the eye - superior rectus, medial rectus, inferior rectus and inferior oblique

*constrict the pupil and controls the shape of the lens for near and far vision

Question 3

Cranial Nerve IV

Answer 3

Trochlear (motor)

Motor fibers to the superior oblique muscle of the eye

Question 4

Cranial Nerve V

Answer 4

Trigeminal (mixed)

Sensory: face sensation of touch / also pain “from the face”

Motor: masseter muscle/tempoarlis muscle for chewing

Question 5

Cranial Nerve VI

Answer 5

Abducens - motor

Motor fibers to the lateral muscle of the eye

Question 6

Cranial Nerve VII

Answer 6

Facial - mixed

Sensory: taste

Motor: lacrimal (tears) gland, salivary glands and skeletal facial muscles

Question 7

Cranial Nerve VIII

Answer 7

Vestibulocochlear - sensory

Sensory from the internal ear for balance (vestibular part) and hearing (cochlear part)

Question 8

Cranial Nerve IX

Answer 8

Glossopharyngeal - mixed

Sensory: taste (some impulses for BP brought to the brain, from arteries in the neck)

Motor: salivary gland and muscles of the pharynx (swallowing)

Question 9

Cranial Nerve X

Answer 9

Vagus - mixed

Sensory: taste (brings sensory impulses from internal organs to the brain)

Motor: salivary glands, swallowing, voice muscles

-autonomic fibers to many abdominal organs such as heart, lung, liver, stomach, intestines etc

Autonomic: ⤵️❤️rate, ⤴️ juice productivity in digestive

Question 10

Cranial Nerve XI

Answer 10

Accessory - motor

Motor to sternocleidomastoid and trapezius muscle

“Helps you lift up shoulders and turn head”

Question 11

Cranial Nerve XII

Answer 11

Hypoglossal - motor

Motor to tongue muscle

Question 12

Cranial Nerve I

Answer 12

Olfactory (sensory)

Sense of smell to the brain