NBDHE Cranial Nerves/Function

Function: Transmits smell from nasal mucosa

This function describes which Cranial Nerve?

• CN I: Olfactory

• CN VII: Facial

• CN VI: Abducens

• CN IV: Trochlear

• CN V: Trigeminal

Function: Carries visual information from the eye to the brain. Transmits sight from retina of eye, after entering the optic canal, the two nerves cross at the optic chiasma

This function describes which Cranial Nerve?

• CN II: Optic

• CN III: Oculomotor

• CN VI: Abducens

• CN IV: Trochlear

• CN V: Trigeminal

Function: Controls some eye muscles that move the eyeball. It also has parasympathetic fibers that go to the ciliary ganglion then to control muscles inside the eye.

This function describes which Cranial Nerve?

• CN II: Optic

• CN III: Oculomotor

• CN VI: Abducens

• CN IV: Trochlear

• CN V: Trigeminal

Function: Contracts one muscle, the superior oblique muscle, of the eye.

This function describes which Cranial Nerve?

• CN II: Optic

• CN III: Oculomotor

• CN VI: Abducens

• CN IV: Trochlear

• CN V: Trigeminal

Function: This nerve controls one muscle that moves the eyeball laterally. This nerve runs through the cavernous sinus and is often the first nerve affected by cavernous sinus infection.

This function describes which Cranial Nerve?

• CN II: Optic

• CN III: Oculomotor

• CN VI: Abducens

• CN IV: Trochlear

• CN V: Trigeminal

Function: Provides hearing and balance

This function describes which Cranial Nerve?

• CN X: Vagus

• CN VIII: Vestibulocochlear

• CN IV: Trochlear

• CN V: Trigeminal

Function: Muscles of facial expression, Taste ( anterior 2/3 of tongue). It has parasympathetic fibers to the Lacrimal, Sublingual, Submandibular, and Salivary Glands.

This function describes which Cranial Nerve?

• CN X: Vagus

• CN VII: Facial

• CN IV: Trochlear

• CN V: Trigeminal

Answer explanation

Taste

(anterior 2/3 of tongue via chorda tympani).

Function: Taste and Sensation for the posterior 1/3 of Tongue, parasympathetic innervation to the Parotid gland and Related to gag reflex.

This function describes which Cranial Nerve?

• CN X: Vagus

• CN IX: Glossopharyngeal

• CN XI: Accessory

• CN XII: Hypoglossal

Function: Conveys taste from the base of the tongue. Smooth muscles and glands of the body. Innervates the pharynx region and organs in the chest and abdomen

This function describes which Cranial Nerve?

• CN X: Vagus

• CN IX: Glossopharyngeal

• CN XI: Accessory

• CN XII: Hypoglossal

Function: Controls the trapezius, sternocleidomastoid muscle and muscles of the soft palate and pharynx

This function describes which Cranial Nerve?

• CN X: Vagus

• CN IX: Glossopharyngeal

• CN XI: Accessory

• CN XII: Hypoglossal