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gen. Anat > week 7 nervous system > Flashcards

week 7 nervous system Flashcards

1
Q

Nuerons

A

Functional unit of NS
Conduct impulses (electrical signals)
Releases neurotransmitters

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2
Q

Nuergolia

A

Support, protect and nourish neurons

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3
Q

organs found in CNS

A

Brain and spinal cord

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4
Q

organs found in PNS

A

Nerves- cranial nerves and spinal nerves

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5
Q

motor function

A

-sending commands and actually RESPONDING to the integrative decisions
-Physical movement
-Carried out by motor neurons

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6
Q

integrative function

A

Analyzes sensory information and makes decisions on what to do

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7
Q

sensory function

A

-Sensory receptors detect changes from internal or external environment
-Sensory information travels from body to brain by sensory neurons

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8
Q

function frontal lobe

A

movement
thinking
judgment
emotions
memory
speaking

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9
Q

function of parietal lobe

A

right from left
sensation
reading
understands special relationships

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10
Q

function of occipital lobe

A

vision
colors

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11
Q

function of temporal lobe

A

language
behavior
memory
hearing

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12
Q

function of cerebellum

A

-coordinates skeletal muscle movements
-maintains posture and balance
-process impulses

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13
Q

function of medulla oblongata

A

relays motor and sensory information from brain and spinal cord

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14
Q

purpose/location of meninges

A

Protect brain and spinal cord
dura mater/archoid/ pia mater

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15
Q

How does sensory info get to CNS

A

“Sensory pathway”
1-sensory receptor gets info
2- receptor sends electric signal to sensory neuron
3-sensory neuron sends info to brain/spinal cord

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16
Q

Motor pathway

A

“response”
1-motor neuron will stimulate other motor neurons in CNS
2- last neuron will stimulate “target tissue” and tissue will respond

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17
Q

function of dendrite

A

branched processes that extend to cytoplasm
respond to stimuli and conduct nerve impulses TO cell body

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18
Q

function of cell body

A

Receives stimuli which “excites” the neuron

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19
Q

function of axon

A

Conduct impulses AWAY from cell body to the end of the axon to communicate with another cell

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20
Q

function of axon terminal

A

end of axon
releases neurotransmitters to other cells

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21
Q

Somatic nervous system

A

Voluntary control
supplies skeletal muscle with nerves
-supplies hearing vision taste and smell to CNS
-conduct CNS to skeletal muscles

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22
Q

autonomic nervous system

A

-involuntary control
-supplies glands, smooth and cardiac muscle with nerves
-convey information from autonomic sensory receptors to CNS

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23
Q

autonomic-Sympathetic division

A

-Supports physical activity and produces ATP
-reduced functions to store energy when needed
-“fight or flight “ response

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24
Q

autonomic-Parasympathetic divison

A

“rest and digest” functions
-restore energy during rest and recovery
-decrease heart rate

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25
Q

cerebralspinal fluid

A

Shock absorber
Chemical protection\
Removes waste from nervous tissue

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26
Q

gray matter

A

composed of neuron cell bodies dendrites, unmyelated axons and neuroglia

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27
Q

white matter

A

composed of myelinated axons, dendrites and neuralgia, form tracts in CNS

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28
Q

how many pairs of spinal nerves

A

31- each serves a particular area in body

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29
Q

Why are spinal nerves called “mixed”
nerves?

A

has both sensory and motor neurons

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30
Q

Which neurons are in the anterior root

A

motor nuerons

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31
Q

which neurons are in the posterior
root?

A

sensory nuerons

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32
Q

cervical plexus

A

supplies head and neck structures

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33
Q

brachial plexus

A

supplies upper extremity and some neck and shoulder muscles

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34
Q

lumbar plexus

A

lower abdomen and anterior and medial portions of lower extremity

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35
Q

sacral plexus

A

innervates lower back, pelvis, perineum, posterior thigh and leg, dorsal and plantar foot

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36
Q

Reflexes

A

Rapid, automatic responses to stimuli

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37
Q

nureal reflex

A

-Sensory fibers carry info from sensory receptors to interneurons
-info goes to spine
-motor fibers carry motor commands

38
Q

Relex arc

A

“wiring” of a single reflex from receptor to target tissue

39
Q

olfactory nerve function

A

Smell

40
Q

optic nerve function

A

Vision

41
Q

oculomotor nerve function

A

moves most eye muscles/ controls pupil constriction

42
Q

trochlear nerve function

A

innervates superior oblique muscle of eyeball

43
Q

Trigeminal nerve function

A

sensory for face and motor to muscles of mastication/chewing

44
Q

Abducens nerve function

A

motor to lateral rectus muscle

45
Q

facial nerve function

A

motor to muscles of facial expression
tears/salivation
taste on 2/3 tongue

46
Q

Vestibulocochlear nerve function

A

hearing and equilibrium

47
Q

Glossopharyngeal nerve function

A

stimulates swallowing

48
Q

vagus nerve function

A

swallowing and phonation

49
Q

accessory nerve function

A

muscles that move head

50
Q

Hypoglossal nerve function

A

instrisic and extrinsic muscles of the tongue

51
Q

Frontal lobe

A

front brain
1

52
Q

parietal lobe

A

middle of brain
2

53
Q

temporal lobe

A

side brain
3

54
Q

occipital lobe

A

back brain
4

55
Q

pre central gyrus

A

above frontal lobe
5

56
Q

post central gyrus

A

behind pre
6

57
Q

central sulcus

A

divides pre and post central gyrus
7

58
Q

longtitudal fissure

A

cut down middle of brain
8

59
Q

thalamus

A

middle ish part of inside
9

60
Q

hypothalamus

A

stemming out part of thalamus
10

61
Q

pituitary gland

A

gland to the left of hypo
11

62
Q

pineal gland

A

gland to the right
12

63
Q

corpus collosum

A

c shaped
13

64
Q

midbrain

A

top part of stem
14

65
Q

pons

A

middle of stem
15

66
Q

medulla oblongata

A

bottom stem
16

67
Q

cerebellum

A

big thingy on side
17

68
Q

lateral ventricles

A

big hole on top
18

69
Q

3rd ventricle

A

along with thalamus
19

70
Q

4th ventricle

A

bottom hole
20

71
Q

cerebral aqueduct

A

leads from 3rd to 4th ventrile
21

72
Q

arachnoid matter

A

inside stuff
22

73
Q

pia matter

A

super inside stuff
23

74
Q

dura mater

A

outside stuff
24

75
Q

posterior root

A

root towards front
25

76
Q

anterior root

A

root in da back
26

77
Q

posterior root ganglion

A

big thing root leads to
27

78
Q

gray matter

A

gray
28

79
Q

white matter

A

white
29

80
Q

spinal nerve

A

branching out of thing
30

81
Q

epidural space

A

space in vertebrae
31

82
Q

median nerve

A

middle of forearm
32

83
Q

axillary nerve

A

by deltoid
33

84
Q

musculocutaneous nerve

A

upper arm to side
34

85
Q

radial nerve

A

on side of thumb
35

86
Q

ulnar nerve

A

on side of pinky
36

87
Q

sciatic nerve

A

long nerve top of leg
37

88
Q

tibial nerve

A

along bottom of leg close to pink toe
38

89
Q

common fibular nerve

A

extends off siatic
39

90
Q

femoral nerve

A

only one on front
40

gen. Anat (13 decks)

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