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Physiology-organization Of The Human Body > Chapter 8 Part 1 > Flashcards

Chapter 8 Part 1 Flashcards

0
Q

Shortens the muscles and causes movement

A

Isotonic

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1
Q

Slight, constant contraction during consciousness

A

Tone

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2
Q

Increases muscle tension but no movement occurs

A

Isometric

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3
Q

Continuous sustained contraction allowing smooth movement

A

Tetnus

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4
Q

“Stair step” increase in contraction with repeated stimulation before muscle has completely relaxed

A

Wave

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5
Q

Multinucleated muscle tissue

A

Skeletal

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6
Q

Muscle tissue found in blood vessels and stomach

A

Smooth

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7
Q

Voluntary muscle tissue

A

Skeletal

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8
Q

Muscle tissue branched with intercalated discs

A

Cardiac

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9
Q

Spindle-shaped muscle tissue

A

Smooth

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10
Q

Muscle tissue that is cylindrical in shape and is un branched

A

Skeletal

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11
Q

Muscle tissues that are striated

A

Skeletal

Cardiac

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12
Q

Muscle tissues that are involuntary

A

Cardiac

Smooth

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13
Q

Muscle tissue found in the heart

A

Cardiac

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14
Q

Muscle tissue that is un striated

A

Smooth

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15
Q

Muscle tissue usually attached to bones

A

Skeletal

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16
Q

Muscle tissue with the longest individual cells

A

Skeletal

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17
Q

Nonstriated muscle tissue

A

Smooth

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18
Q

Does the length of the actin and myosin filaments change during contraction

A

No

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19
Q

This is essential for maintaining posture

A

Muscle tone

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20
Q

The third phase or period of a muscle twitch contraction

A

Relaxation period

21
Q

These structures in the enlarged bulb of an axon provide energy to make ACh

A

Mitochondria

22
Q

State of limpness in which muscle tone is lost

A

Flaccid

23
Q

The cytoplasm of a muscle fiber

A

Sacroplasm

24
Q

This tissue is responsible for most of the heat production going on In our body

A

Muscle

25
Q

Skeletal muscles have a good blood supply

A

True

26
Q

Skeletal muscles have a good nerve supply

A

True

27
Q

All the muscle fibers In a motor unit must contract or relax together

A

True

28
Q

The movement of these ions from outside the sarcolemma to inside causes an action potential to begin to move along

A

Sodium ions

29
Q

These ions are necessary to trigger muscles contraction

A

Calcium ions

30
Q

Dietary supplement that some studies show may result in more lifting power

A

Creatine

31
Q

The storage form of glucose in our liver and muscles

A

Glycogen

32
Q

This anaerobic process provides enough energy for 30-40 seconds of maximal activity

A

Glycolysis

33
Q

Connective tissue that attaches muscle to bone

A

Tendon

34
Q

The source of energy for muscle contraction

A

ATP

35
Q

Another name for an action potential

A

Nerve impulse

36
Q

This is required by mitochondria in the aerobic production of energy for muscle contraction

A

Oxygen

37
Q

Another name for muscle cells

A

Fibers

38
Q

The cell membrane of Muscle cells

A

Sarcolemma

39
Q

Alternate light and dark bands running through the sarcoplasm of a muscle cell

A

Striations

40
Q

A single nerve fiber and the muscle fibers it supples

A

Motor unit

41
Q

A chemical necessary to transfer the nerve impulse to stimulate the Muscle

A

Acetylcholine

42
Q

The time between the application of a stimulus and the actual shortening of a muscle

A

Latent period

43
Q

Two types of skeletal muscle contractions needed for normal body movements

A

Isotonic

Tetanus

44
Q

The connection between a nerve fiber and a muscle fiber

A

Neuromuscular junction

45
Q

A brief contraction of all muscle fibers of a motor unit in response to a single stimulus

A

Twitch contraction

46
Q

Most of ca2+ is found here when a muscle fiber is relaxed

A

Sarcoplasmic reticulum

47
Q

A stiffening of the muscles after death due to ca+2 leaking out of the Sarcoplasmic reticulum

A

Rigor mortis

48
Q

The neurotransmitter released from the synaptic vesicles of neurons supplying skeletal muscle

A

Acetylcholine

49
Q

The thick myofilament that had enlarged heads to form cross bridges

A

Myosin

Physiology-organization Of The Human Body (9 decks)

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