Nervous System Flashcards

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1
Q

sympathetic

A

accelerator

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2
Q

2 branches of automatic system

A

sympathetic and parasympathetic

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3
Q

automatic system

A

all involuntary actions

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4
Q

somatic system

A

responsible for all voluntary actions

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5
Q

2 systems in peripherals

A

somatic and autonomic

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6
Q

how many pairs of nervous systems extend from CNS

A

31

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7
Q

peripheral nervous system

A

responsible for all other nerve processes that branch out from spine to receptors in muscles, glands, blood vessels and organs

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8
Q

2 parts of nervous system

A

central and peripheral

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9
Q

motor

A

activate body systems by sending messages back via peripheral nervous system

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10
Q

association

A

memory, thought and emotion

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11
Q

3 areas of brain

A

sensory, motor and association

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12
Q

sensory

A

receive impulses from sense organs via peripheral nervous system

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13
Q

2 main lobes of brain

A

R &L hemisphere

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14
Q

central nervous system

A

brain and spinal cord

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15
Q

parasympathetic

A

slows down

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16
Q

neurotransmitters

A

allow brain to interpret signals from periphery and respond mechanically

17
Q

motor unit recruitment

A

activating right amount of muscles for the job

18
Q

nerve impulses

A

activating nerves

19
Q

motor unit

A

motor neuron that connects to muscle at end of motor plate

20
Q

motor unites recruited by

A

size- small to large

21
Q

strength of contraction

A

depends on number of muscle fibers needed

22
Q

all or none

A

no partial contraction

23
Q

3 basic roles

A

sensation, integrative, motor

24
Q

layers of fascial connective tissue

A

epimysium, endomysium, perimesium

25
Q

epimysium

A

wraps around whole muscle

26
Q

ednomysium

A

around smaller individual fibers

27
Q

brain

A

interprets messages from the peripheral nervous system

28
Q

spinal cord

A

transfers messages in and out of CNS

29
Q

neurons

A

impulses or messages passed though nervous system via nerve cells called neurons

30
Q

2 types of neurons

A

motor neurons, sensory neurons

31
Q

motor neurons

A

transient impulses from CNS to muscles and glands

32
Q

sensory neurons

A

transmit impulses from PNS to CNS to be interpreted by brain