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nervous system > PNS > Flashcards

PNS Flashcards

1
Q

PNS

A

Peripheral nervous system

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2
Q

classification of nerves

A

sensory –> afferent (imput)
Motor –> efferent (output)
most nerves are mixed
these nerves stem from the brain or spinal cord

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3
Q

Plexus (4 types)

A

Cervical plexus –> phrenic nerve
Brachial plexus –> radius, median, ulna, musculanteous nerves
lumbar plexus –> femoral nerve (front)
Sacral plexus –> sciatic nerve (back)

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4
Q

Cranial nerves 1

A

olfactory, smell

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5
Q

cranial nerve 2

A

optic, vision/sight

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6
Q

cranial nerve 3

A

ocular-motor, eye movement

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7
Q

cranial nerve 4

A

trochlear, eye movement

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8
Q

cranial nerve 5

A

trigeminal, sensory + motor in face

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9
Q

cranial nerve 6

A

abducens, eye movement

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10
Q

cranial nerve 7

A

facial, face expression

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11
Q

cranial nerve 8

A

vestibularcochler, hearing + balance

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12
Q

cranial nerve 9

A

glossophalangeal, swallowing

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13
Q

cranial nerve 10

A

vagus, digestion, heart rate

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14
Q

cranial nerve 11

A

accessory, head + neck movement

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15
Q

cranial nerve 12

A

hypoglossal, tonuge + taste

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16
Q

sensory receptors

A

feeling through the body

17
Q

exteroreceptor

A

skin and external stimuli

18
Q

interoreceptor

A

visoro (organ)

19
Q

machanoreceptor

A

muscles

20
Q

thermoreceptor

A

temperature

21
Q

photoreceptor

A

light + color (light is rodes) (color is cone)

22
Q

chemoreceptor

A

chemical receptor, taste buds on tongue

23
Q

proprioceptors

A

skeletal muscle receptor

24
Q

nociceptor

A

pain receptor

25
Q

neurotransmitters

A

chemical receptor that carries signals

26
Q

acetylcholine (ach)

A

released at nmj and some ans neurons
organ –> all muscles

27
Q

dopamine

A

Feeling of happiness, pleasure, reward (partkinsons lacks dopamine)

28
Q

GABA gamma-aminobutracid

A

slows down activity brain activity, calming, controls hunger (tells you when your full)

29
Q

serotonin

A

regulates mood, sleep, appetite, learning, memory

30
Q

endorphin

A

body’s natural pain reliever, reduces pain perception and improves mood

31
Q

norepinephrine

A

fight or flight signals

nervous system (7 decks)

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