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Somatic Studies Comp > chapter 10 - muscular tissue > Flashcards

chapter 10 - muscular tissue Flashcards

1
Q

what type of muscle moves bones?

A

skeletal muscle

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2
Q

is skeletal muscle voluntary or involuntary?

A

voluntary

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3
Q

is skeletal muscle striated or non striated?

A

striated

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4
Q

what type of muscle forms the heart wall?

A

cardiac muscle

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5
Q

is cardiac muscle voluntary or involuntary?

A

involuntary

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6
Q

what is found inside the walls of hollow organs, blood vessels, and airways?

A

smooth muscle

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7
Q

is smooth muscle striated or non striated?

A

non striated

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8
Q

is cardiac muscle striated or non striated?

A

striated

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9
Q

is smooth muscle voluntary or involuntary?

A

involuntary

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10
Q

what covers the muscle?

A

epimysium

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11
Q

what covers the fascicle?

A

perimyisum

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12
Q

what covers muscle fibers?

A

endomysium

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13
Q

what is the plasma membrane covering the cell?

A

sarcolemma

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14
Q

what is another name for cytoplasm?

A

sarcoplasm

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15
Q

what is another name for plasma membrane?

A

sarcolemma

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16
Q

what is a system of membraneous sacs that surround each myofibril?

A

sarcoplasmic reticulum

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17
Q

what is the functional unity of the myofibril?

A

sarcomere

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18
Q

what separates the sarcomeres?

A

Z disc

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19
Q

what is the line in the center of the sarcomere?

A

M line

20
Q

what is the dark area containing thick and thin filaments?

A

A band

21
Q

what is the light area containing only thin filaments?

A

I band

22
Q

what is the center of A band that contains thick filaments only?

A

H zone

23
Q

what stage of the sliding filament mechanism does the cross bridge occur?

A

second stage

24
Q

what stage of the sliding filament mechanism does the power stroke occur?

A

third stage

25
Q

what is the sliding filament mechanism for?

A

muscle contraction

26
Q

what are the contractile proteins?

A

actin and myosin

27
Q

what are the regulatory proteins?

A

troponin and tropomyosin

28
Q

what is the synapse between a somatic motor neuron and a skeletal muscle fiber?

A

neuromuscular junction (NMJ)

29
Q

what is another name for muscle fiber?

A

muscle cell

30
Q

what is another name for neuron?

A

nerve cell

31
Q

what is the communication point between the neuron and other cells type?

A

synapse

32
Q

what is the chemical that the nerve releases that excites the muscle and causes contraction?

A

acetylcholine (ACh)

33
Q

what is another name for the synaptic space?

A

synaptic cleft

34
Q

what is composed of a motor neuron plus all of its muscle fibers that it innervates?

A

motor unit

35
Q

what type of muscle has a high myoglobin content?

A

red muscle

36
Q

what type of muscle has less myoglobin content?

A

white muscle

37
Q

what type of muscle fibers would be good for weight lifting?

A

fast glycolytic fibers (FG)

38
Q

what type of muscle fibers would be good for running a marathon?

A

slow oxidative fibers (SO)

39
Q

what type of muscle fibers would be good for walking or sprinting?

A

fast oxidative-glycolytic fibers (FOG)

40
Q

what type of muscle contraction is it when the muscle tension is great enough to overcome the resistance of the object to be moved?

A

concentric isotonic

41
Q

what type of muscle contraction is it when the muscle tension is less than the resistance?

A

eccentric isotonic

42
Q

what type of muscle contraction is the muscle shortening?

A

concentric isotonic

43
Q

what type of muscle contraction is the muscle lengthening?

A

eccentric isotonic

44
Q

what type of muscle contraction is it where the muscle force and resistance are equal?

A

isometric contraction

45
Q

which muscle contraction results in no movement?

A

isometric contraction

46
Q

what is the second stimulus that occurs before the muscle relaxes and the second contraction is stronger?

A

wave summation

Somatic Studies Comp (24 decks)

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