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