cranial nerves

Question 1

where does the cranial nerves start and end?

Answer 1

telencephalon and medulla

Question 2

which two cranial nerves are not technically cranial nerves?

Answer 2

optic nerve

spinal accessory

Question 3

which cranial nerves are in the forebrain?

Answer 3

olfactory

optic

Question 4

which cranial nerves are in the midbrain?

Answer 4

oculomotor

trochlear

Question 5

which cranial nerves are in the pons?

Answer 5

trigeminal
abducens
facial
auditory

Question 6

which cranial nerves are in the medulla?

Answer 6

glossopharyngeal
vagus
spinal accessory
hypoglossal

Question 7

• smell
• sensory special
• starts in the nose and runs to telencephalon
• connection to limbic system
• develops from a placode

Answer 7

olfactory

Question 8

• sensory special
• vision
• connects the retinal ganglion axons to the brain

Answer 8

optic

Question 9

where does the eye develop from?

Answer 9

diencephalon

Question 10

• motor (somatic and visceral)
• one of 3 nerves which innervate the 6 extrinsic muscles of the eye
• move the eyeball

Answer 10

oculomotor

Question 11

what are the extrinsic muscles of the eye that oculomotor connects with?

Answer 11

inferior oblique
medical rectus
inferior rectus
superior rectus

Question 12

• innervate parts of the parasympathetic nervous system
• the ciliary muscles that change the shape of the lens and iris
• smooth muscle tissue

Answer 12

oculomotor visceral

Question 13

• somatic motor only
• innervates the superoblique extrinsic muscle of the eye
• rotates eyeball downward and outward

Answer 13

trochlear

Question 14

• somatic sensory and somatic motor
• first mixed nerve
• the motor portion innervates the striated muscles of the jaw
• the sensory portion is somatosensory and carries all temp/pain/touch/pressure input from the skin covering the face, forehead, and top of the head

Answer 14

trigeminal

Question 15

• somatic motor
• innervates only the lateral rectus extrinsic muscles of the eye
• abducts the eyeball laterally and outward

Answer 15

abducens

Question 16

• primarily somatic motor, but also visceral motor, small somatic sensory and special sense
• taste

Answer 16

facial

Question 17

• innervates the striated muscles of the faces used for facial expression
• includes all the muscles of the face except for eye and jaw muscles

Answer 17

somatic motor

Question 18

• innervates the tear ducts and 2 salivary glands

- sublingual and submaxillary glands

Answer 18

visceral motor

Question 19

• innervates a small portion of the skin over the mastoid

Answer 19

somatic sensory

Question 20

• portion of nerve that involves the taste sensations in the anterior 2/3s of tongue

Answer 20

special sense

Question 21

• special sense
• hearing
• origin from placode
• carries sense info from the inner ear and vestibular organs

Answer 21

auditory

Question 22

• general visceral sensory, general ad special visceral motor, and general somatic sensory and special sense

Answer 22

glossopharyngeal

Question 23

• innervates receptors from major blood vessels in the neck
• helps to monitor the pH, carbon monoxide and BP
• innervates pain/temp sensations from the upper pharynx, tonsils, eustachian tube and soft palate

Answer 23

general visceral sensory glossopharyngeal

Question 24

innervates the parotid gland

Answer 24

general visceral motor glossopharyngeal

Question 25

helps elevate the larynx

Answer 25

special visceral motor glossopharyngeal

Question 26

- innervates a small area behind the ear | - which is actually a ring surrounding the skin innervated by nerve VII

Answer 26

general somatic sensory glossopharyngeal

Question 27

carries info from the posterior 1/3 of tongue

Answer 27

special sense glossopharyngeal

Question 28

I

Answer 28

olfactory

Question 29

II

Answer 29

optic

Question 30

III

Answer 30

oculomotor

Question 31

IV

Answer 31

trochlear

Question 32

V

Answer 32

trigeminal

Question 33

VI

Answer 33

abducens

Question 34

VII

Answer 34

facial

Question 35

VIII

Answer 35

auditory

Question 36

IX

Answer 36

glossopharygeal

Question 37

X

Answer 37

vagus

Question 38

visceral motor and visceral sensory

Answer 38

vagus

Question 39

- main parasympathetic innervation to the internal organ | - heart, trachea, bronchi, esophagus, stomach intestines

Answer 39

general visceral motor -- vagus

Question 40

- innervates the larynx, pharynx, and upper part of esophagus - upper part of soft palate, except for tensor palatini - cricothyroid

Answer 40

special visceral motor -- vagus

Question 41

- carries general skin sensation from pharynx, larynx, thorax, abdomen, heart, bronchi and esophagus to CNS

Answer 41

general visceral sensory -- vagus

Question 42

carries sensations from pharynx and epiglottis

Answer 42

special visceral sensory -- vagus

Question 43

- general visceral motor - innervates two muscles of the neck - ends in spinal cord

Answer 43

spinal accessory

Question 44

which two neck muscles does the spinal accessory innervate?

Answer 44

- trapezius | - sternocleidomastoid

Question 45

front of the neck that tilts the head forward

Answer 45

sternocleidomastoid

Question 46

sides of the neck that lift the shoulders up and down

Answer 46

trapezius

Question 47

- general somatic motor | - innervates tongue muscles

Answer 47

hypoglossal