Quiz 3 Appendix C

Question 1

Olfactory Nerve pair

Answer 1

I

Question 2

Optic Nerve

Answer 2

II

Question 3

Oculomotor Nerve

Answer 3

III

Question 4

Trochlear Nerve

Answer 4

IV

Question 5

Trigeminal

Answer 5

V

Question 6

Abducens Nerve

Answer 6

VI

Question 7

Facial Nerve

Answer 7

VII

Question 8

Vestibulocochlear Nerve

Answer 8

VIII

Question 9

Glossopharyngeal Nerve

Answer 9

IX

Question 10

Vagus Nerve

Answer 10

X

Question 11

Spinal Accessory Nerve

Answer 11

XI

Question 12

Hypoglossal Nerve

Answer 12

XII

Question 13

Cranial Nerves _, _, _ are special sense nerves only

Answer 13

I, II, VIII (Olfactory, Optic and, Vestibulocochlear nerves)

Question 14

Cranial Nerves _, _, _ ALL go to the eye area. Recall that C.N. II (optic) brought input FROM the eye to the brain

Answer 14

III, IV, VI (Oculomotor, Trochlear, Abducens)

Question 15

Cranial nerves _, _ are the GREAT sensory & motor nerves of the face

Answer 15

V, VII (Trigeminal, Facial nerve)

Question 16

Carries olfactory input to the brain via the olfactory bulb & tract

Answer 16

C.N I

Question 17

Much of this input is ultimately interpreted in the uncus of each temporal lobe

Answer 17

Olfactory C.N I

Question 18

This nerve carries about a million neuron fibers back from the retina of each eye to the brain via the optic nerves, chiasma, and tracts

Answer 18

Optic C.N II

Question 19

Neurons near the _______ _______ of each occipital lobe serve as sight interpretation.

Answer 19

Calcarine Sulcus

Question 20

Although often called the auditory nerve it also carries input on the equilibrium from the inner ear.

Answer 20

C.N III Oculomotor

Question 21

________ & _______ are both involved, thus the name vestibulocochlear nerve

Answer 21

Vestibule & cochlea (C.N III)

Question 22

Final interpretation of hearing is in the superior temporal gyrus of each temporal lobe

Answer 22

C.N III Oculomotor

Question 23

There are 6 voluntary (somatic) muscles that allow us to move each eyeball. They work together so we see but one subject rather than having double vision. What are the two C.N.’s that control one of these muscles each?

Answer 23

C.N. IV & VI
IV= Trochlear
VI = Abducens

Question 24

C.N ___ is more complex & larger & controls 4 of the 6 external eye muscles

Answer 24

C.N III Oculomotor

Question 25

C.N III also has __________ control over some smooth muscles on the side of the eye which allows us to use more or less light & to view objects at distance & quickly switch to near objects & stay in focus.

Answer 25

Parasympathetic control

Question 26

Largest cranial nerve & its apparent origin comes out of the side of the pons.

Answer 26

C.N V = trigeminal

Question 27

C.N V (trigeminal) breaks down into 3 parts:

Answer 27

Ophthalmic
Maxillary
Mandibular

Question 28

Primarily a sensory nerve but does supply motor fibers to the muscles which help us chew our food

Answer 28

C.N V (trigeminal)

Question 29

Typically it carries sensations of pain, thermal, light, & deep touch from facial areas

Answer 29

C.N V (trigeminal)

Question 30

C.N _ is an important motor nerve to the muscles of facial expression

Answer 30

VII (Facial)

Question 31

Its sensory component brings in taste from the anterior parts of the tongue

Answer 31

VII = Facial

Question 32

It also motor innervates the “tear” producing lacrimal glands (parasympathetic component)

Answer 32

VII = Facial

Question 33

C.N’s _ & _ and others may be best known for sensory or motor parts but often carry both. In this case they are known as mixed cranial nerves.

Answer 33

C.N V & VII Trigeminal & facial

Question 34

Mixed nerve also supplying motor & sensory innervation to the pharynx tissues & the back of the tongue.

Answer 34

C.N IX (glosspharyngeal)

Question 35

Has extensive parasympathetic control over the largest salivary glands (parotids)

Answer 35

C.N IX (glosspharyngeal)

Question 36

Motor nerve that controls all of the significant muscles that help move our tongue

Answer 36

C.N XII (hypoglossal)

Question 37

C.N _ is the longest cranial nerve serving not only the head and neck but sending branches down to innervate the thorax & abdomen structures

Answer 37

C.N X Vagus

Question 38

It is mixed even though 80% of its fibers are AFFERENT

Answer 38

C.N X Vagus

Question 39

Its major visceral component is parasympathetic

Answer 39

C.N X vagus

Question 40

C.N _ a motor nerve which comes partly from the M.O & partly from the spinal cord’s upper cervical area

Answer 40

C.N XI Spinal accessory

Question 41

A few of its fibers join w/ the vagus to be distributed

Answer 41

C.N XI Spinal accessory

Question 42

Innervates 2 famous muscles of the neck; Sternocleidomastoid (SCM) & the trapezius

Answer 42

C.N XI Spinal accessory