Anatomy- Cranial Nerves, Neuroglia And Neurons

Front 1

olfactory: origin

Back 1

fibers arise from olfactory receptors in the nasal mucosa and synapse with the olfactory bulbs (which in turn sends fibers to the olfactory cortex)

Front 2

what number is olfactory?

Back 2

one, I

Front 3

function of olfactory

Back 3

purely sensory; carries impulses for the sense of smell

Front 4

optic is which number?

Back 4

two, II

Front 5

optic: origin

Back 5

fibers arise from the retina of the eye and form the optic nerve. the 2 optic nerves form the optic chiasma by partial crossover of the fibers; the fibers continue to the optic cortex as the optic tracts

Front 6

function of optic

Back 6

purely sensory; carries impulses for vision

Front 7

oculomoter: origin

Back 7

fibers run from the midbrain to the eye

Front 8

function of oculomoter

Back 8

supplies motorfibers to 4 of the 6 muscles that direct the eyeball; to the eyelid; to the internal eye muscles controlling lens shape and pupil size

Front 9

which cranial nerve contorls eye movement?

Back 9

oculomoter and trochlear

Front 10

oculomoter is what number?

Back 10

three, III

Front 11

trochlear is what number?

Back 11

four, IV

Front 12

trochlear: origin

Back 12

fibers run from the midbrain to the eye

Front 13

function of trochlear

Back 13

supplies motor fibers for one external eye muscle (superior oblique)

Front 14

which two cranial nerves run from the midbrain to the eye?

Back 14

oculomotor and trochlear

Front 15

trigeminal is what number?

Back 15

five, V

Front 16

Trigeminal: origin

Back 16

fibers emerge from the pons and form 3 divisions that run to the face

Front 17

trigeminal function

Back 17

conducts sensory impulses from the stem of the face and muscosa of the nose and mouth also contains motor fibers that activate the chewing muscle

Front 18

which cranial nerve contains the three main face muscles?

Back 18

trigeminal

Front 19

what are the three main face muscles that trigeminal controls?

Back 19

mouth, mucosa of the nose and face

Front 20

Abducens: origin

Back 20

fibers leave the pons and run to the eye

Front 21

abducens is which number

Back 21

six, VI

Front 22

function of abducens

Back 22

supplies motor fibers to the lateral rectus muscle which rolls the eye laterally

Front 23

which cranial nerve lets the eye roll?

Back 23

abducens

Front 24

what is the saying to remember the cranial nerves?

Back 24

O O O, To Touch And Feel Very Good Velvet AH

Front 25

facial is what number

Back 25

seven, VII

Front 26

facial: origin

Back 26

fibers leave the pons and run to the face

Front 27

function of facial

Back 27

activates the muscle of facial expression and the lacrimal and salivary glands; carries sensory impulses from the taste buds and anterior tongue

Front 28

which cranial nerve allows facial expression?

Back 28

facial

Front 29

which cranial nerve activates the salivary glands?

Back 29

facial

Front 30

which cranial nerve carries sensory impulses from the taste buds?

Back 30

facial

Front 31

vestibulocochlear: origin

Back 31

fibers run from the equilbrium and hearing receptors of the inner ear to the brian stem

Front 32

what is the vestibulocochlear number?

Back 32

eight, VIII

Front 33

function of vestibulocochlear

Back 33

purely sensory; vestibular branch transmits impulses for the sense of balance and cochlear branch transmits impulses for the sense of hearing

Front 34

which cranial nerve gives you a sense of balance?

Back 34

vestibulocochlear

Front 35

which cranial nerve transmits impulses fro the sense of hearing?

Back 35

vestibulocochlear

Front 36

glossophargyngeal: origin

Back 36

fibers emerge from the medulla and run the throat (swallowing)

Front 37

function of glossophargyngeal

Back 37

supplies motorfibers to the pharynx (throat) that promote swalling and saliva production; carries sensory impulses from taste buds of the posterior tongue and from pressure receptors of the carotid artery

Front 38

what is the number of glossophargyngeal?

Back 38

nine, XI

Front 39

which crainial nerve supplies motorfibers to the throat that allows swallowing?

Back 39

glossophargyngeal

Front 40

which cranial nerve carries sensory impulses from the taste buds?

Back 40

glossophargyngeal

Front 41

vagus: origin

Back 41

fibers emerge from the medulla and descend into the throax and abdominal cavity

Front 42

function of the vagus?

Back 42

fibers carry sensory impulses from and motor impulses to the pharynx, larynx, and the abdominal and thoraic viscera; most fibers are parasympathetic fibers that promote digestive activity and help regulate heart activity

Front 43

which cranial nerve promotes digestive activity and helps regulate heart activity?

Back 43

vagus

Front 44

which number is vagus?

Back 44

ten, X

Front 45

accessory: origin

Back 45

fibers arise from the medulla and superior spinal cord and travel to muscles of the neck and back

Front 46

function of accessory?

Back 46

mostly motor fibers that activate the stemocleidomastoid and trap ezius muscles

Front 47

what is the number of accessory?

Back 47

eleven, XI

Front 48

which cranial nerve contorls neck muscles?

Back 48

accessory

Front 49

hypoglossal: origin

Back 49

fibers run from the medulla to the tongue

Front 50

what is the function of hypoglossal?

Back 50

motor fibers control tongue movements; sensory fibers carry impulses from the tongue

Front 51

what is the number of the hypoglossal?

Back 51

twelve, XII

Front 52

which four cranial nerves emerge from the medulla?

Back 52

glossopharyngeal, vagus, accessory and hypoglossal

Front 53

which cranial nerve control the tongue movements and impusles from the tongue?

Back 53

hypoglossal

Front 54

ependymal

Back 54

lines the cavities of the brain and the spinal cord. cilia helps the cereprospinal fluid and forms a protective cushion around the CNS

Front 55

which neuroglia has cilia?

Back 55

ependymal

Front 56

which neuroglia lines the cavities of the brain and the spinal cord?

Back 56

ependymal

Front 57

oligodendrocytes

Back 57

glia that wrap their flat extensions tightly around the nerve fibers, producing fatty insulating coverings called myelin sheaths

Front 58

which neuroglia wraps around nerve fibers?

Back 58

oligodendrocytes

Front 59

which neuroglia has myelin sheaths?

Back 59

oligodendrocytes

Front 60

microgolia

Back 60

spiderlike phagosytes that dispose of debris, including dead brain cells and bacteria

Front 61

which neuroglia gets rid of debris?

Back 61

microglia

Front 62

which neuroglia has lysomes?

Back 62

microglia

Front 63

which neuroglia has smooth ER?

Back 63

oligodendrocytes

Front 64

astrocytes

Back 64

abundant star-shaped cells that account for nearly half of the neural tissue. their numerous projections have swollen ends that cling to the neurons bracing them and achoring them to their nutrient supply lines and blood capillaries. (more)

Front 65

which neuroglia has a barrier between capillaries and nuerons and plays a role in making exchanges between the two?

Back 65

astrocytes

Front 66

which neuroglia protects neurons from harmful substances that might be in the blood?

Back 66

astrocytes

Front 67

which nueroglia helps control the chemical environment in the brain by picking up excess ions and recapturing released neurotransmitters?

Back 67

astrocytes

Front 68

which neuroglia has capillaries?

Back 68

astrocytes

Front 69

what are node of ranvies?

Back 69

spaces that break the myelin sheath

Front 70

what are the dendrites at the end of a neuron?

Back 70

axon terminals

Front 71

what are schwann cells?

Back 71

the conduction of nervous impulses along axons. the peripheral segment of nerves and produces a substance called myelin.

Front 72

what is myelin sheath?

Back 72

made of schwann cells in PNS and oligodendrocytes in CNS. encloses the axon and speeds up the rate of nervous conduction

Front 73

what is gray matter?

Back 73

non-myelinated nerve fiber

Front 74

what is white matter?

Back 74

myelinated nerve fiber

Front 75

what is an axon?

Back 75

act to transmit impulsees away from the cell body

Front 76

what is the cell body in a neuron?

Back 76

contains the nucleus and metabolic center of the cell