Intro To Cranial Nerves

Question 0

SSA

Answer 0

Special somatic afforestation for vision, hearing and balance

Question 1

SVE

Answer 1

Motor to skeletal muscle that develops from pharyngeal arches

Question 2

SVA

Answer 2

Special visceral afferent for olfaction and taste

Question 3

Sympathetic nerve fibers in cranial nerves

Answer 3

Not all branches of cranial n have post ganglionic sympathetic (GVE) fibers, they have cell bodies in superior cervical sympathetic ganglion.
Distributed via peri arterial plexuses around internal and external carotid a.

Question 4

Parasympathetic nerve fibers of cranial nerves

Answer 4

GVE

only originate in CN III, VII, IX, and X

Question 5

CN numonics

Answer 5

Oh oh oh to touch and feel vintage green velvet simply heaven

Question 6

How CN are numbered

Answer 6

According to the rostral caudal paterning of when they pierce the dura mater

Question 7

Olfactory nerve

Answer 7

Sense of smell

Contains SVA that arise from mucosa of nasl cavity pierce the cribriform plate reach the olf bulb

Question 8

Optic nerve

Answer 8

Fnxn in vision

Contain SSA formed by axons of ganglia cells of nervous retina which converge at the optic disc

Question 9

CN III, IV, VI

oculomotor, trochlear, abducent

Answer 9

Inter ate the extra ocular muscles

Contain GSE fibers

Question 10

Trigeminal n

Answer 10

Main sensory inervation of the face

Innervation of muscles of mastication and other muscles that develope from 1st phar arch.

Question 11

Trigeminal ganglion

Answer 11

Where three divisions of the sensory part of the trigeminal nerve branch, they have they’re cell bodies here
Nerve fibers are GSA

Question 12

Ophthalmic nerve

Answer 12

First branch of trigeminal nerv, sensory n of orbit, forehead and dorsum of the nose

Question 13

Maxillary nerve

Answer 13

Sensory nerve of the middle face

Also sends GSA fibers to oral and nasal cav.

Question 14

Mandibular division of the trigeminal n

Answer 14

Inervates muscles of the first phar. arch SVE

GSA to the lower 1/3 of the face and temple

Question 15

Facial nerve

Answer 15

Innervation muscles of facial expression
Pregang. Parasympathetic fibers (GVE) to lacrimal, submandibular, and sublingual glands
Carries taste from the anterior 2/3 of the tongue

Question 16

Vestibulocochlear nerve

Answer 16

Carries SSA fibers from the inner ear to the brain

Has vestibular and cochlear parts

Question 17

Glossopharyngeal n

Answer 17

Carries tast and sensation from the posterior 1/3 of tongue and oropharynx
Carries pregang parasympathetic fibers to the parotid gland
Provides GVA to carotid sinus and body

Question 18

Vagus nerve

Answer 18

Innervation muscles of the soft palate pharynx and larynx
Provides taste of root of tongue and epiglottis
Provides general sensation to the phar and lar

Question 19

Accessory nerve

Answer 19

Innervates SCM and trapezius GSE fibers

Question 20

Hypoglossal nerve

Answer 20

Sends GSE fibers to Innervate extrinsic and intrinsic muscles of the tongue