Cranial nerves

Question 1

CN I

Answer 1

Olfactory Nerve

Transmits sensory information to your brain regarding smells

Question 2

CN II

Answer 2

Optic Nerve

Sensory nerve that involves vision

Question 3

CN III

Answer 3

Oculomotor Nerve
Muscle Function: Provides motor function to four of the 6 muscles around your eyes; help to move and focus on objects
Pupil Response: Helps to control the size of your pupil as it responds to light

Question 4

CN IV

Answer 4

Trochlear Nerve

Controls superior oblique muscle - responsible for downward, outward, and inward eye movement

Question 5

CN V

Answer 5

Trigeminal nerve
The largest of the cranial nerves; sensory and motor function
Ophthalmic: Sends sensory information from the upper part of your face including your forehead, scalp and upper eyelids
Maxillary: Communicates sensory information from the middle part of your face, including cheeks, upper lip, and nasal cavity
Mandibular: The mandibular division has both a sensory and motor function; sends sensory information from your ears, lower lip, and chin. Controls the movement of muscles within your jaw and ear

Question 6

CN VI

Answer 6

Abducens Nerve
Controls another muscle associated with eye movement - Lateral Rectus Muscle
Involved in outward eye movement

Question 7

CN VII

Answer 7

Facial Nerve - sensory and motor
Moves muscles used for facial expressions
Provides sense of taste for most of tongue
Supplying glands in your head or neck (salivary glands and tear producing glands)
Communicating sensations from the outer parts of ear

Question 8

CN VIII

Answer 8

Vestibulocochlear Nerve
Cochlear: Detect vibrations from sound based off of the sounds loudness and pitch; generates nerve impulses that are transmitted to cochlear nerve
Vestibular: Track both linear and rotational movement of your head; balance and equilibrium

Question 9

CN IX

Answer 9

Glossopharyngeal Nerve
Send sensory information from your sinuses, back of throat, parts of inner ear, and back part of tongue
Provide sense of taste for back part of tongue
Stimulate voluntary. movement of a muscle at the back of throat (Stylopharyngeus)

Question 10

CN X

Answer 10

Vagus Nerve
Communicate sensation information from ear canal and parts of throat
Send sensory information from organs in chest and trunk (heart and intestines)
Allow motor control of muscles in throat
Stimulate muscles of organs in chest and trunk; including those that move food through digestive track (Peristalsis)
Provide sense of taste near root of tongue

Question 11

CN XI

Answer 11

Spinal Accessory Nerve

Control muscles in neck - rotate, flex and extend