Quiz 3 Appendix C Flashcards Preview

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Flashcards in Quiz 3 Appendix C Deck (42):
1

Olfactory Nerve pair

I

2

Optic Nerve

II

3

Oculomotor Nerve

III

4

Trochlear Nerve

IV

5

Trigeminal

V

6

Abducens Nerve

VI

7

Facial Nerve

VII

8

Vestibulocochlear Nerve

VIII

9

Glossopharyngeal Nerve

IX

10

Vagus Nerve

X

11

Spinal Accessory Nerve

XI

12

Hypoglossal Nerve

XII

13

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

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

14

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

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

15

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

V, VII (Trigeminal, Facial nerve)

16

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

C.N I

17

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

Olfactory C.N I

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

Optic C.N II

19

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

Calcarine Sulcus

20

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

C.N III Oculomotor

21

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

Vestibule & cochlea (C.N III)

22

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

C.N III Oculomotor

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?

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

24

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

C.N III Oculomotor

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.

Parasympathetic control

26

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

C.N V = trigeminal

27

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

Ophthalmic
Maxillary
Mandibular

28

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

C.N V (trigeminal)

29

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

C.N V (trigeminal)

30

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

VII (Facial)

31

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

VII = Facial

32

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

VII = Facial

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.

C.N V & VII Trigeminal & facial

34

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

C.N IX (glosspharyngeal)

35

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

C.N IX (glosspharyngeal)

36

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

C.N XII (hypoglossal)

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

C.N X Vagus

38

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

C.N X Vagus

39

Its major visceral component is parasympathetic

C.N X vagus

40

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

C.N XI Spinal accessory

41

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

C.N XI Spinal accessory

42

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

C.N XI Spinal accessory