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gen. Anat > week 7 nervous system > Flashcards

week 7 nervous system Flashcards

(90 cards)

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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
cerebralspinal fluid
Shock absorber Chemical protection\ Removes waste from nervous tissue
26
gray matter
composed of neuron cell bodies dendrites, unmyelated axons and neuroglia
27
white matter
composed of myelinated axons, dendrites and neuralgia, form tracts in CNS
28
how many pairs of spinal nerves
31- each serves a particular area in body
29
Why are spinal nerves called “mixed” nerves?
has both sensory and motor neurons
30
Which neurons are in the anterior root
motor nuerons
31
which neurons are in the posterior root?
sensory nuerons
32
cervical plexus
supplies head and neck structures
33
brachial plexus
supplies upper extremity and some neck and shoulder muscles
34
lumbar plexus
lower abdomen and anterior and medial portions of lower extremity
35
sacral plexus
innervates lower back, pelvis, perineum, posterior thigh and leg, dorsal and plantar foot
36
Reflexes
Rapid, automatic responses to stimuli
37
nureal reflex
-Sensory fibers carry info from sensory receptors to interneurons -info goes to spine -motor fibers carry motor commands
38
Relex arc
"wiring" of a single reflex from receptor to target tissue
39
olfactory nerve function
Smell
40
optic nerve function
Vision
41
oculomotor nerve function
moves most eye muscles/ controls pupil constriction
42
trochlear nerve function
innervates superior oblique muscle of eyeball
43
Trigeminal nerve function
sensory for face and motor to muscles of mastication/chewing
44
Abducens nerve function
motor to lateral rectus muscle
45
facial nerve function
motor to muscles of facial expression tears/salivation taste on 2/3 tongue
46
Vestibulocochlear nerve function
hearing and equilibrium
47
Glossopharyngeal nerve function
stimulates swallowing
48
vagus nerve function
swallowing and phonation
49
accessory nerve function
muscles that move head
50
Hypoglossal nerve function
instrisic and extrinsic muscles of the tongue
51
Frontal lobe
front brain 1
52
parietal lobe
middle of brain 2
53
temporal lobe
side brain 3
54
occipital lobe
back brain 4
55
pre central gyrus
above frontal lobe 5
56
post central gyrus
behind pre 6
57
central sulcus
divides pre and post central gyrus 7
58
longtitudal fissure
cut down middle of brain 8
59
thalamus
middle ish part of inside 9
60
hypothalamus
stemming out part of thalamus 10
61
pituitary gland
gland to the left of hypo 11
62
pineal gland
gland to the right 12
63
corpus collosum
c shaped 13
64
midbrain
top part of stem 14
65
pons
middle of stem 15
66
medulla oblongata
bottom stem 16
67
cerebellum
big thingy on side 17
68
lateral ventricles
big hole on top 18
69
3rd ventricle
along with thalamus 19
70
4th ventricle
bottom hole 20
71
cerebral aqueduct
leads from 3rd to 4th ventrile 21
72
arachnoid matter
inside stuff 22
73
pia matter
super inside stuff 23
74
dura mater
outside stuff 24
75
posterior root
root towards front 25
76
anterior root
root in da back 26
77
posterior root ganglion
big thing root leads to 27
78
gray matter
gray 28
79
white matter
white 29
80
spinal nerve
branching out of thing 30
81
epidural space
space in vertebrae 31
82
median nerve
middle of forearm 32
83
axillary nerve
by deltoid 33
84
musculocutaneous nerve
upper arm to side 34
85
radial nerve
on side of thumb 35
86
ulnar nerve
on side of pinky 36
87
sciatic nerve
long nerve top of leg 37
88
tibial nerve
along bottom of leg close to pink toe 38
89
common fibular nerve
extends off siatic 39
90
femoral nerve
only one on front 40

gen. Anat (13 decks)

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