cranial and spinal nerves

Question 1

how many pairs of cranial nerves

Answer 1

12

Question 2

CN I

Answer 2

olfactory

Question 3

CN II

Answer 3

optic

Question 4

CN III

Answer 4

oculomotor

Question 5

CN IV

Answer 5

trochlear

Question 6

CN V

Answer 6

trigeminal

Question 7

CN VI

Answer 7

abducens

Question 8

CN VII

Answer 8

facial

Question 9

CN VIII

Answer 9

vestibulocochlear

Question 10

CN IX

Answer 10

glossopharyngeal

Question 11

CN X

Answer 11

vagus

Question 12

CN XI

Answer 12

accessory

Question 13

CN XII

Answer 13

hypoglossal

Question 14

CN I: olfactory: S or M

Answer 14

sensory

Question 15

CNII S or M

Answer 15

sensory

Question 16

CN III S or M

Answer 16

motor

Question 17

CN IV S or M

Answer 17

motor

Question 18

CN V S or M

Answer 18

both

Question 19

CN VI S or M

Answer 19

motor

Question 20

CN VII S or M

Answer 20

both

Question 21

CN VIII S or M

Answer 21

sensory

Question 22

CN IX S or M

Answer 22

both

Question 23

CN X S or M

Answer 23

both

Question 24

CN XI S or M

Answer 24

motor

Question 25

CN XII S or M

Answer 25

motor

Question 26

olfactory function

Answer 26

smell

Question 27

optic function

Answer 27

vision

Question 28

optic nerves arise from ___ and cross at the ____ terminating on the ____

Answer 28

retina, optics chiasm, optic cortex

Question 29

oculomotor function

Answer 29

move eye up, iris diameter/lens shape

Question 30

oculomotor nuclei located

Answer 30

midbrain

Question 31

trochlear function

Answer 31

look in

Question 32

trochlear nuclei located

Answer 32

midbrain, superior colliculi

Question 33

trigeminal function

Answer 33

sensory of the face, chewing

Question 34

trigimenal nuclei located

Answer 34

midbrain, pons, medulla

Question 35

trigimenal 3 branches

Answer 35

ophthalmic, maxillary, mandibular

Question 36

abducens function

Answer 36

look out

Question 37

abducens nuclei located

Answer 37

pons

Question 38

facial function

Answer 38

facial expressions, salivary glands, taste front 2/3 of the tongue

Question 39

facial nuclei located

Answer 39

pons

Question 40

vestibulocochlear function

Answer 40

hearing, balance/equilibrium

Question 41

vestibulocochlear nuclei located

Answer 41

pons, medulla

Question 42

glossopharyngeal function

Answer 42

pharynx, back 1/3 tongue

Question 43

vagus function

Answer 43

treating, HR, diaphragm, etc.

Question 44

vagus nuclei located

Answer 44

medulla

Question 45

accessory function

Answer 45

traps, SCM,

Question 46

accessory nuclei located

Answer 46

medulla

Question 47

hypoglossal function

Answer 47

tongue movement

Question 48

hypoglossal nuclei located

Answer 48

medulla

Question 49

CN I olfactory exit

Answer 49

cribriform palate

Question 50

CN II optic exit

Answer 50

optic canal

Question 51

CN III oculomotor exit

Answer 51

superior orbital fissure

Question 52

CN IV trochlear exit

Answer 52

superior orbital fissure

Question 53

CN V trigeminal exit

Answer 53

V1. superior orbital fissure
V2. foramen rotundum
V3. foramen ovale

Question 54

CN VI abducens exit

Answer 54

superior orbital fissure

Question 55

CN VII facial exit

Answer 55

internal acoustic meatus & stylomastoid function

Question 56

CN VIII vestibulocochlear exit

Answer 56

internal acoustic meatus

Question 57

CN IX glossopharyngeal exit

Answer 57

jugular foramen

Question 58

CN X vagus exit

Answer 58

jugular foramen

Question 59

CN XI accessory exit

Answer 59

jugular foramen

Question 60

CN XII hypoglossal exit

Answer 60

hypoglossal canal

Question 61

structure of the peripheral nerve

Answer 61

bundle of myelinated and unmyelinated axons enclosed by CT

Question 62

epineurium

Answer 62

touch fibrous sheath

Question 63

perineurium

Answer 63

bundles of fibers into fascicles

Question 64

encloses each individual axon

Answer 64

endoneurium

Question 65

classification of peripheral nerves

Answer 65

cranial, spinal

Question 66

ganglia of peripheral nerves contain ___ of the CNS

Answer 66

neuronal cell bodies

Question 67

dorsal root ganglia: cluster of ___ in the dorsal root

Answer 67

sensory cell bodies

Question 68

autonomic ganglia: cluster of ____ in the autonomic NS

Answer 68

motor neuron bodies

Question 69

___ pairs of mixed nerves arise from spinal cord

Answer 69

31

Question 70

spinal nerves
___ cervical
___ thoracic
___ lumbar
___ sacral
___ coccygeal

Answer 70

8, 12, 5, 5, 1

Question 71

spinal nerve roots: spinal nerves are connected to spinal cord via two roots, ___ and ___, each root contains ___

Answer 71

ventral, dorsal, rootlets

Question 72

ventral roots contain __ fibers

Answer 72

motor

Question 73

efferent fibers from ____ motor neurons

Answer 73

ventral horn

Question 74

dorsal root contains only ___ fibers

Answer 74

sensory

Question 75

afferent fibers from sensory neurons are in

Answer 75

dorsal root ganglion

Question 76

each spinal nerve branches are called ____. the spinal nerve branches into ____ and ___

Answer 76

rami, dorsal, ventral

Question 77

dorsal ramus supplies

Answer 77

posterior body

Question 78

dermatome

Answer 78

area of skin innervated by a single spinal nerve

Question 79

segmented plan

Answer 79

each formal ramus innervates a narrow strip of muscle and skin

Question 80

hiltons law

Answer 80

nerve innervating a muscle also innervates the joint and the skin over a joint

Question 81

ventral ramus supplies

Answer 81

rest of the trunk and limbs

Question 82

most ventral rami branches and join to form ____

Answer 82

plexus(es)

Question 83

plexus

Answer 83

interlacing nerve network

Question 84

ventral rami of thoracic nerves t2-t12 give rise to

Answer 84

intercostal nerves

Question 85

4 types of plexus

Answer 85

cervical, brachial, lumbar, sacral