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Anatomy 205 > Chapter 10 study guide intro muscles > Flashcards

Chapter 10 study guide intro muscles Flashcards

1
Q

1

A

Thin Filament

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2
Q

2

A

Thick Filament

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3
Q

3

A

Z disc

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4
Q

4

A

H zone

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5
Q

6

A

I band

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6
Q

7

A

A band

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7
Q

8

A

M line

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8
Q

muscle types

A

skeletal

cardiac

smooth

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9
Q

skeletal muscle

A

voluntary

striated

attached to bones

multi-nucleated

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10
Q

cardiac muscle

A

involuntary

striated

intercolated discs

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11
Q

smooth muscle

A

involuntary

nonstriated

cells fusiform in shape

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12
Q

muscle tissue funtions

A

movement

stability of body

control of passages and openings

heat production

glycemic control

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13
Q

muscle properties

A

excitability

conductivity

contractility

extensibility

elasticity

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14
Q

muscle structure

1

A

fascia

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15
Q

muscle structure

2

A

epimysium

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16
Q

muscle structure

3

A

perimysium

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17
Q

muscle structure

4

A

fascicles

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18
Q

muscle structure

5

A

endomysium

19
Q

muscle structure

6

A

muscle fiber

20
Q

muscle fiber

1

A

Nucleus

21
Q

muscle fiber

2

A

Mitochondria

22
Q

muscle fiber

3

A

myofibrils

23
Q

muscle fiber

4

A

myofilaments

24
Q

muslce fiber

5

A

Sarcolemma

25
Q

muscle fiber

6

A

transverse tubule

26
Q

muscle fiber

7

A

transverse cisternae

27
Q

muscle fiber

8

A

sarcoplasmic reticulum

28
Q

muslce to bone attachments

A

indirect

direct

29
Q

indirect attachment

A

attach via fibrous tendons

30
Q

direct attachment

A

muscle fibers extend nearly to bone surface and muscle fibers connect directly to periosteum

31
Q

muscle groups

A

prime movers

synergist

antagonist

fixator

32
Q

prime movers

A

muscle that produces the most force

33
Q

synergists

A

muscles that assist prime mover

34
Q

antagonist

A

muscle that opposes prime mover

35
Q

fixator

A

muscle that holds bone still

36
Q

intrinsic muscles

A

boht origin and insertion are within specified region

head

hand

37
Q

extrinsic muscles

A

origin is outside of the region

insertion is in the region of movement

38
Q

stiations of muscle

A

due to the arrangement of bands within the sarcomere

39
Q

motor neuron relationship

A

connection is the neuromuscular junction

nerve impulse causes muscle contraction

by release of acetylcholine

40
Q

neuromuscular junction

A

synaptic knob nestles in depression of the sarcolemma

the synaptic cleft separates the to from actual contact

41
Q

motor unit

A

single nerve fiber and all muscle fibers innervated by it

42
Q

motor unit significance

A

allows precise control over muscle contractoin to allow just enough contraction to perform the task

43
Q
A

Anatomy 205 (44 decks)

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