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A.P Med > Muscle Physiology > Flashcards

Muscle Physiology Flashcards

1
Q

7 muscle system functions

A

Movement
Posture
Organ and vessel constriction
Guards entrances and exits
Body temp
Respirations
Communication(body language)

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2
Q

Contractility

A

The ability to shorten a muscle with force

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3
Q

Excitability

A

The ability for a muscle to react to stimuli

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4
Q

Extensibility

A

The ability to extend and stretch to normal and a bit beyond

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5
Q

Elasticity

A

The ability to recoil to normal position after stretched

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6
Q

Connective tissue sheet

A

Fascia

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7
Q

Connective tissue that surrounds the whole muscle

A

Epimysium

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8
Q

Epimysium bunched up into a cord the. Into a bone

A

Tendon

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9
Q

Dense connective tissue surrounding a group of muscle fibers and divides the muscles into smaller groups

A

Perimysium

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10
Q

Group of muscles

A

Fascicule

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11
Q

Loose connective tissue fibers around individual muscles cells

A

Endomysium

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12
Q

Nerves and blood vessels travel through?

A

Perimysium

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13
Q

Lone and skinny cell

A

Fiber

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14
Q

Cell membrane

A

Sarcolemma

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15
Q

Fluid inside the cells

A

Sarcoplasm

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16
Q

Hole that dives deep into fibers

A

Transverse tubles

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17
Q

Calcium tube that goes parallel into the fiber

A

Sarcoplasmic reticulum

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18
Q

Protein that runs the fiber lining

A

Myofibrils

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19
Q

Smallest part of muscle

A

Sarcomere

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20
Q

Long and skinny Protein with a skin bond

A

Actin

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21
Q

Protein with a thick bond

A

Myosin

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22
Q

Active cites on ?

A

Actin

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23
Q

This is needed for a muscle to let go

A

ATP

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24
Q

This travels down transverse tubules to sarcolema

A

Action potential

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25
Q

Blank gate that opens by projection

26
Q

Spot on sarcolemma where the neuron with communicate with

A

Motor endplate

27
Q

The thing that starts a action

A

Motor neuron

28
Q

Where the neuron meets the muscle

A

Neuromuscular junction

29
Q

Name of the neurotransmitter for muscle

A

Acetylcholine

30
Q

One neuron and all the fibers it controls
Around (200-1000)

A

Motor units

31
Q

Take the energy out of food to make this

32
Q

How much ATP is in the human body at a time

A

2-3 seconds

33
Q

You use this to make ATP

A

Creative Phosphate

34
Q

You carry this much creatine phosphate at a time

35
Q

Metabolizing food without oxygen

A

Anaerobic respiration

36
Q

How is Latic acid made?

A

Glucose transforms into something else and pyruvate is a byproduct. This byproduct sits out side a cell’s mitochondria slowly getting sucked in. If it sucks in slower then it’s created the pyruvate is turned into latic acid

37
Q

How long can a person anaerobic for

A

30- 40 seconds

38
Q

Metabolize food with oxygen

A

Aerobic respiration

39
Q

Happens after a exercise when you breath heavy

A

Oxygen debt

40
Q

4 things that happen when recovering from oxygen debt

A

1, restores ATP
2, puts creatine back together
3, you heart gets rid of the Latic acid
4, repair(strenuous exercise breaks tissue)

41
Q

How many ATP per glucose

42
Q

What happens with more PH

A

Reactions happen slower, which means you move slower

43
Q

Slow twitch
Primary in legs

44
Q

Fast twitch
In legs

45
Q

Fast twitch explosive power
In arms

46
Q

Molecules that hold oxygen

47
Q

Same tension curls the weight and gravity stays the same

48
Q

Same length and holding out a book for posture

49
Q

Same speed, artificial and always moves the same speed

A

Isokinetic

50
Q

Same muscles doing the same actions

A

Prime mover

51
Q

Muscle that helps

52
Q

Opposite muscles

A

Antagonist

53
Q

Muscle getting actually shorter

A

Concentric

54
Q

Muscle that grows with gravity

55
Q

Primary anchor point

56
Q

Point of primary movement

57
Q

A action that was told to contract once

58
Q

Gets more small motor units first and slowly gathers more

A

Recruitment

59
Q

Muscle around the inside of body
Everywhere in body

A

Smooth muscle

60
Q

40% mitochondrial tissue so it”s never anaerobic and no oxygen debt
In heart only

A

Cardiac muscle

61
Q

Study the essay questions

A.P Med (4 decks)

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