nervous system Flashcards

(69 cards)

1
Q

oligodendrocytes

A

makes myelin in CNS

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2
Q

schwann cells

A

makes myelin in PNS

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3
Q

astrocytes

A

support + nutrition in CNS

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4
Q

satellite cells

A

support + nutrition in PNS

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5
Q

ependymal cells

A

makes CSF in CNS

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6
Q

microglia

A

immune/phagocytic cells in CNS

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7
Q

transduction

A

conversion of environmental stimuli to electrical impulses

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8
Q

sensory functions

A

special senses, somatic senses, afferent fibers

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9
Q

motor functions

A

control bodily movement, ANS, efferent fibers, + somatic/visceral muscle

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10
Q

integrative function

A

process incoming information

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11
Q

nucleus

A

a group of nerve cell bodies in CNS

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12
Q

ganglion

A

group of nerve cell bodies in PNS

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13
Q

tract

A

group of axons in CNS

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14
Q

nerve

A

group of axons in PNS

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15
Q

what is the inner covering in the CNS?

A

pia mater

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16
Q

what is the inner covering in the PNS?

A

endoneurium

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17
Q

what is the middle covering in the CNS?

A

arachnoid mater

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18
Q

what is the middle covering in the PNS?

A

perineurium

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19
Q

what is the outer covering in the CNS?

A

dura mater

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20
Q

what is the outer covering in the PNS?

A

epineurium

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21
Q

functional classification of bipolar neurons

A

sensory

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22
Q

functional classification of pseudo-unipolar neurons

A

sensory

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23
Q

functional classification of multipolar neurons

A

motor + interneurons

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24
Q

receptors of pseudo-unipolar neurons

A

nociceptor, proprioceptor, osmoreceptor, baroreceptor, chemoreceptor,etc

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25
nociceptor
detects pain
26
proprioceptor
detects body position/spatial awareness
27
osmorecpetors
detect if blood is hyper/hypotonic
28
barorecptor
detects stretch/pressure in a vessel
29
chemoreceptor
detects the chemistry of blood (usually)
30
pseudo-unipolar neuron axon
central process to axon terminal
31
where do action potential originate in pseudo-unipolar neurons?
1st node of ranvier
32
where does summation occur in multipolar neurons?
axon hillock
33
multipolar neuron axon
carries info AWAY from cell body
34
electrical synapses
rapid bidirectional, contain gap junctions
35
chemical synapses
one way, synaptic delay, + synaptic fatigue
36
electrical synapses characteristics
physical fusions between cells allowing electrical info to transfer
37
chemical synapses characteristics
most common. neuron secretes a neurotransmitter to proceed
38
types of chemical synapses
axodendritic, axosomatic, axoaxonic, + dendrodenritic
39
axodendritic synapse
releases NT. to end of the next cell. MOST COMMON
40
axosomatic synapse
releases NT to cell body of next cell. excitatory
41
axoaxonix synapse
releases NT to axon of another cell. inhibitory
42
dendro-dendritic synapse
dendrite to dendrite NT. RARE
43
CN I foramen
cribiform plate
44
CN II foramen
optic canal
45
CN III foramen
superior orbital fissure
46
CN IV foramen
superior oblique
47
CN V1 foramen
superior orbital fissure
48
CN V2 foramen
foramen rotundum
49
CN V3 foramen
foramane ovale
50
CN VI foramen
lateral rectus
51
CN VII foramen
internal acoustic meatus
52
CN VIII foramen
internal acoustic meatus
53
CN IX foramen
jugular foramen
54
CN X foramen
jugular foramen
55
CN XI foramen
jugular foramen
56
CN XII foramen
hypoglossal canal
57
somatic senses
from the body. tactile/touch sensations, pain, temperature, + proprioception
58
visceral sensations
from the organs
59
special senses
sight, sound, smell, taste
60
what makes + releases acetylcholine?
cholinergic neurons
61
what makes and releases norepinephrine?
adrenergic neurons
62
what does norepinephrine bind to?
adrenergic receptors
63
what makes + releases gamma-amino-butyric acid (GABA)?
GABA-nergic neurons
64
what makes + releases glutamate?
glutaminergic neurons
65
what makes + releases serotonin?
serotoninergic neurons
66
what makes + releases dopamine?
dopaminergic neurons
67
what kind of channel is cholinergic neurons?
ligand gated sodium channels
68
what kind of channel is adrenergic neurons?
ligand gated sodium channel
69
what kind of channel is GABA-nergic neurons?
ligand gated chloride channels