Muscle System Diagrams

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121 Terms

1
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<p>1?</p>

1?

Myelin sheath surrounding axon of motor neuron

2
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<p>2?</p>

2?

Axon terminal

3
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<p>3?</p>

3?

Synaptic end bulb at the neuromuscular junction

4
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<p>4?</p>

4?

Myofibril of muscle fiber

5
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<p>5?</p>

5?

Sarcoplasm

6
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<p>6?</p>

6?

Synaptic end bulb

7
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<p>7?</p>

7?

Nerve impulse (action potential)

8
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<p>8?</p>

8?

Synaptic vesicle

9
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<p>9?</p>

9?

Sarcolemma

10
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<p>10?</p>

10?

Synaptic cleft

11
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<p>11?</p>

11?

Motor end-plate

12
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<p>12?</p>

12?

ACh

13
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<p>13?</p>

13?

Synaptic vesicle

14
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<p>14?</p>

14?

Synaptic cleft

15
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<p>15?</p>

15?

ACh receptor

16
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<p>16?</p>

16?

Motor end-plate

17
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<p>17?</p>

17?

Synaptic vesicle releases ACh by exocytosis

18
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<p>18?</p>

18?

Binding of ACh to its receptor opens the channel

19
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<p>19?</p>

19?

Sarcolemma

20
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<p>1?</p>

1?

Nucleus

21
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<p>2?</p>

2?

Muscle fiber

22
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<p>3?</p>

3?

Light I band

23
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<p>4?</p>

4?

Mitochondrion

24
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<p>5?</p>

5?

Sarcolemma

25
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<p>6?</p>

6?

Myofibril

26
New cards
<p>7?</p>

7?

Dark A band

27
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<p>8?</p>

8?

Sarcoplasmic reticulum

28
New cards
<p>9?</p>

9?

Thin (actin) filament

29
New cards
<p>10?</p>

10?

Z disc

30
New cards
<p>11?</p>

11?

Sarcomere

31
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<p>12?</p>

12?

H zone

32
New cards
<p>13?</p>

13?

Z disc

33
New cards
<p>14?</p>

14?

Thick (myosin) filament

34
New cards
<p>15?</p>

15?

I band

35
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<p>16?</p>

16?

A band

36
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<p>17?</p>

17?

I band

37
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<p>18?</p>

18?

M line

38
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<p>1?</p>

1?

Skeletal muscle

39
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<p>2?</p>

2?

Epimysium

40
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<p>3?</p>

3?

Muscle fascicles

41
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<p>4?</p>

4?

Muscle fascicle

42
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<p>5?</p>

5?

Perimysium

43
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<p>6?</p>

6?

Endomysium

44
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<p>7?</p>

7?

Muscle fibers

45
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<p>8?</p>

8?

Muscle fiber

46
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<p>9?</p>

9?

Sarcolemma

47
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<p>1?</p>

1?

Sarcolemma

48
New cards
<p>2?</p>

2?

Sarcoplasmic reticulum

49
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<p>3?</p>

3?

Terminal cisternae

50
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<p>4?</p>

4?

T-tubule

51
New cards
<p>5?</p>

5?

Triad

52
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<p>1?</p>

1?

Sarcomere

53
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<p>2?</p>

2?

H zone

54
New cards
<p>3?</p>

3?

M line

55
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<p>4?</p>

4?

Z line

56
New cards
<p>5?</p>

5?

Lighter I band

57
New cards
<p>6?</p>

6?

Darker A band

58
New cards
<p>7?</p>

7?

Portion of thick filament

59
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<p>8?</p>

8?

Portion of a thin filament

60
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<p>9?</p>

9?

Troponin

61
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<p>10?</p>

10?

Actin

62
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<p>11?</p>

11?

Tropomyosin

63
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<p>12?</p>

12?

Head

64
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<p>13?</p>

13?

Actin-binding sites

65
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<p>14?</p>

14?

ATP-binding site

66
New cards
<p>15?</p>

15?

Heads

67
New cards
<p>16?</p>

16?

Tail

68
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<p>17?</p>

17?

Myosin molecule

69
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<p>18?</p>

18?

Flexible hinge region

70
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<p>19?</p>

19?

Binding site for myosin

71
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<p>20?</p>

20?

Actin subunits

72
New cards
<p>1?</p>

1?

An action potential arrives at neuromuscular junction

73
New cards
<p>2?</p>

2?

ACh is released, binds to receptors, and opens sodium ion channels, leading to an action potential in sarcolemma

74
New cards
<p>3?</p>

3?

Action potential travels along the T-tubules

75
New cards
<p>4?</p>

4?

Calcium

76
New cards
<p>5?</p>

5?

Troponin

77
New cards
<p>6?</p>

6?

Thick and thin filament interaction leads to muscle contraction

78
New cards
<p>7?</p>

7?

Muscle shortens and produces tension

79
New cards
<p>What is this describing?</p>

What is this describing?

Contraction of muscle fiber

80
New cards
<p>1?</p>

1?

Calcium

81
New cards
<p>2?</p>

2?

Calcium is resorbed, beginning relaxation cycle; ATP is required

82
New cards
<p>3?</p>

3?

Thick and thin filament interaction relaxes

83
New cards
<p>4?</p>

4?

Muscle lengthens and relaxes

84
New cards
<p>What is this describing?</p>

What is this describing?

Relaxation of a muscle fiber

85
New cards
<p>1?</p>

1?

Calcium

86
New cards
<p>2?</p>

2?

Actin

87
New cards
<p>3?</p>

3?

Myosin head

88
New cards
<p>4?</p>

4?

Thin filament

89
New cards
<p>5?</p>

5?

Crossbridge

90
New cards
<p>6?</p>

6?

Thick filament

91
New cards
<p>7?</p>

7?

Power stroke

92
New cards
<p>8?</p>

8?

ADP and Pi released

93
New cards
<p>9?</p>

9?

ATP attaches to myosin and myosin head detaches

94
New cards
<p>10?</p>

10?

Cocking of myosin head

95
New cards
<p>11?</p>

11?

Actin

96
New cards
<p>12?</p>

12?

Thin filament

97
New cards
<p>13?</p>

13?

Calcium binding

98
New cards
<p>14?</p>

14?

Myosin head

99
New cards
<p>15?</p>

15?

Thick filament

100
New cards
<p>1?</p>

1?

M line