Bio-50B - Cranial Nerves

Cranial nerves, images, functions, and type of functions. PS = Parasympathetic Fibers involved in the Autonomic Nervous System.

Nerve? Number?

Olfactory I

Nerve? Number?

Optic II

Nerve? Number?

Oculomotor III

Nerve? Number?

Trochlear IV

Nerve? Number?

Trigeminal V

Nerve? Number?

Abducens VI

Nerve? Number?

Facial VII

Nerve? Number?

Vestibulocholear VIII

Nerve? Number?

Glossopharyngeal IX

Nerve? Number?

Vagus X

Nerve? Number?

Spinal Accessory XI

Nerve? Number?

Hypoglossal XII

Olfactory; m or s?

Sensory

Optic; m or s?

Sensory

Occulomotor; m or s?

Motor

Trochlear; m or s?

Motor

Trigeminal; m or s?

Both

Abducens; m or s?

Motor

Facial; m or s?

Both

Vestibulocochlear; m or s?

Sensory

Glossopharyngeal; m or s?

Both

Vagus; m or s?

Both

Accessory; m or s?

Motor

Hypoglossal; m or s?

Motor

Function of I

sense of smell

Function of II

Senses vision

Function of III

Movement of the eye; constriction of pupils, focuses lens

Function of IV

Eye movement

Function of V

Facial Sensation in V1, V2, V3 and tounge (ant. 2/3)

Controls chewing muscles

Function of VI

Moves eyes outward

Function of VII

Sense of taste on front of tounge (ant. 2/3)

Controls facial expression, eye tear/saliva glands

Function of VIII

Hearing and balance sensors

Function of IX

Taste sensations (Post. 1/3), Pharynx sensations

Controls swallowing, and salivation

Function of X

Sensory of ear skin, pharynx, larynx, throat, abdomen, taste/sensation epiglottis

Controls swallowing, speech, cough, HR, GI tract, Sweating

Function of XI

Neck and Shoulder Muscles- shoulder shrug and head turning

Function of XII

Tongue movements

PS Fibers - Olfactory

No

PS Fibers - Optic

No

PS Fibers - Oculomotor

Yes

PS Fibers - Trochlear

No

PS Fibers - Trigeminal

No

PS Fibers - Abducens

No

PS Fibers - Facial

Yes

PS Fibers - Vestibulocochlear

No

PS Fibers - Glossopharyngeal

Yes

PS Fibers - Vagus

Yes

PS Fibers - Accessory

No

PS Fibers - Hypoglossal

No

What nerve is this?

Olfactory I

What nerve is this?

Optic II

What nerve is this?

Oculomotor III

What nerve is this?

Trochlear IV

What nerve is this?

Trigeminal V

What nerve is this?

Abducens VI

What nerve is this?

Facial VII

What nerve is this?

Vestibulocochlear VIII

What nerve is this?

Glossopharyngeal IX

What nerve is this?

Vagus X

What nerve is this?

Accessory XI

What nerve is this?

Hypoglossal XII