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a&p > muscular system > Flashcards

muscular system Flashcards

1
Q

list the 3 muscle types

A

skeletal, smooth or visceral, cardiac

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2
Q

muscles make up ___ to ___ of our body weight

A

40%, 50%

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3
Q

2 types of involuntary muscle

A

smooth & cardiac

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4
Q

___ bands represent actin

A

I

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5
Q

___ bands represent myosin

A

A

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6
Q

muscle cell

A

sarcomere

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7
Q

2 places to find smooth muscle

A

intestines & bladder

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8
Q

motor neuron + muscle cell innervates

A

motor unit

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9
Q

4 properties/stages of contraction

A

excitability, conductivity, contractility, elasticity

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10
Q

during resting potential, there is a ___ charge outside

A

positive

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11
Q

a sarcomere goes ___ to ___

A

z line, z line

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12
Q

___ is the technical term for chewing

A

mastication

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13
Q

muscles can be named according to their ..

A

action, shape, origin & insertion, location, direction of their fibers

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14
Q

more fixed attachment of a muscle

A

origin

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15
Q

movable attachment of a muscle

A

insertion

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16
Q

attach a muscle to a bone

A

tendons

17
Q

a wide flat tendon

A

aponeurosis

18
Q

muscles that bend a limb at a joint

A

flexors

19
Q

muscles that straighten a limb

A

extensors

20
Q

move a limb away from the midline

A

abductors

21
Q

bring a limb toward the midline

A

adductors

22
Q

revolve a limb around an axis

A

rotators

23
Q

muscles that raise the foot

A

dorsiflexors

24
Q

muscles that lower the foot

A

plantar flexors

25
Q

muscles that turn the palm upward

A

supinators

26
Q

muscles that turn the palm downward

A

pronators

27
Q

raise a part of the body

A

levators

28
Q

lower a part of the body

A

depressors

29
Q

muscles that bring about an action

A

prime movers

30
Q

assists the prime movers

A

synergists

a&p (6 decks)

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