Cranial Nerves

Question 1

___ is the collection of axons exiting or entering the brain or brainstem

Answer 1

cranial nerves

Question 2

define modalities

Answer 2

Can be exclusively sensory, exclusively motor, or both

Question 3

General sensation is involved in

Answer 3

Touch, pain and temperature

Question 4

Special sensation is involved in

Answer 4

Vision, taste, smell, hearing

Question 5

Autonomic sensation is involved in

Answer 5

Stretch and distension

Question 6

Somatic motor control is involved in

Answer 6

voluntary
skeletal muscle

Question 7

Autonomic motor control is involved in

Answer 7

Involuntary
Smooth and cardiac muscle
Glads

Question 8

Define autonomics

Answer 8

neurons located in nuclei within the brainstem

Question 9

What are the 4 types of ganglia in the head?

Answer 9

Ciliary ganglion
Otic ganglion
Pterygopalatine ganglion
submandibular ganglion

Question 10

What is the sympathetic ganglia?

Answer 10

Superior cervical ganglion

Question 11

Pnemonic for cranial nerves

Answer 11

Oh Oh Oh To Touch And Feel Very Good Velvet Ah Heaven

Question 12

Pnemonic for sensory/motor/both

Answer 12

Some Say Marry Money But My Brother Says Big Brains Matter More

Question 13

Olfactory Nerve #, modality and function

Answer 13

• CN I
• sensory (smell)

Question 14

Optic Nerve #, modality, and function

Answer 14

• CN II
• sensory (vision)

Question 15

Oculomotor nerve #, modality, and function

Answer 15

• CN III
• Motor (extrinsic eye muscle)

Question 15

Trochlear nerve #, modality, and function

Answer 15

• CN IV
• motor (extrinsic eye muscle)

Question 16

Trigeminal nerve #, modality, function

Answer 16

• CN V
• sensory and motor
• Upper and middle sensation, maxillary dentition, lower face sensation
• Motor innervation to muscles of mastication

Question 17

The trigeminal nerve divides into what 3 nerves?

Answer 17

• Superior orbital fissure (V1)
• Foramen rotundum (V2)
• Foramen ovale (V3)

Question 18

Abducens nerve #, modality, and function

Answer 18

• CN VI
• motor
• extrinsic eye muscles

Question 19

Facial nerve #, modality, function

Answer 19

• CN VII
• autonomic, sensory, and motor
• taste to anterior 2/3 of tongue
• sensory from ear
• muscles of facial expression

Question 20

Vestibulocochlear nearve #, modality, function

Answer 20

• CN VIII
• sensory (hearing and equilibrium)

Question 21

What are the 2 branches of the vestibulocochlear nerve?

Answer 21

Vestibular and cochlear nerve

Question 22

Glossopharyngeal nerve #, modality, function

Answer 22

• CN IX
• Motor and sensory
• special sense (taste) at posterior 1/3 of tongue
• sensory to pharynx, ear, and tongue

Question 23

Vagus nerve #, modality, function

Answer 23

• CN X
• motor, sensory, and autonomic
• general sense external ear, pharynx, larynx, thorax, abdomen
• special sense (taste) epiglottis
• autonomic afferents for lung, great vessel volume, and for digestive system stretch
• efferent motor innervation to muscle of larynx and pharynx, palate
• autonomic secretomotore to smooth muscle
• autonomic efferent to heart

Question 24

Accessory nerve #, modality, function

Answer 24

• CN XI
• motor
• innervates the trapezius and sternocleidomastoid muscle

Question 25

Hypoglossal nerve #, modality, function

Answer 25

• CN XII
• motor
• Extrinsic muscles of tongue