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Anat/Phys > Muscles > Flashcards

Muscles Flashcards

0
Q

Tissue around the entire muscle

A

Epimysium

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1
Q

Tissue surrounding the entire muscle that separates f from

Other muscles or bones

A

Fasciae

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2
Q

Tissue surrounding the individual fascicals

A

Permits in

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3
Q

Tissue surrounding the individual muscle fiber

A

Endomysium

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4
Q

Adult stem cells repair damaged muscle cells

A

Myoblast

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5
Q

The muscle cell membrane outer most layer

A

Sarcolemma

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6
Q

The muscle cytoplasm

A

Sarcoplasn

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7
Q

The muscle cells ER

A

Sarcoplasmic reticulum

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8
Q

Run perpendicular to the ER to carry materials from fiber to fiber run opposition direction of ER

A

Transverse tubules

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9
Q

Submits of muscle fiber

A

Myofibrils

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10
Q

Sub units of myofibril

A

Myofilaments

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11
Q

Neuron that connect to muscles

A

Motor neuron

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12
Q

Gap between nerve and fiber

A

Synapse

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13
Q

The last part of the motor neuron in the neuromuscular junction

A

Synaptic terminal

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14
Q

The part of the muscle in the neuromuscular justin area

A

Motor end plate

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15
Q

The amount of stimulus needed to release a neurotransmitter

A

Action potential

16
Q

Neurotransmitter that causes Na ions to enter the fiber

A

Acetylcholine

17
Q

The gradual build up of tension do to repeated stimuli

A

Wave summation

18
Q

Maximum tension with brief periods of relaxation

A

Incomplete tetanus

19
Q

No period of relaxation constant full tension( smooth)

A

Complete tetanus

20
Q

Contraction ends but low levels of tension remains in muscle fiber

21
Q

Tension in the myofibril

A

Internal tension

22
Q

Tension at the tendon

A

External tension

23
Q

A motor neuron and all of the fibers it connects to

A

Motor unit

24
Q

Fewer fiber per neuron- react quicker with less force

A

Fine motor skills

25
Q

Many fiber per neuron- slower but have more force

A

Course motor skills

26
Q

Resting tension in a muscle

A

Muscle tone

27
Q

Length of muscle changes

A

Isotoic contractions

28
Q

Shortens

A

Concentric

29
Q

Lengthens

30
Q

Muscles do not change

A

Isometric contractions

31
Q

Maximum amount of tension produced (determined by number of mitochodria)

32
Q

How long a muscle can perform

33
Q

Commin large powerf white have a few mitochondria

34
Q

Small fatigue slowly red more oxyhemoglobin many mitochondria

35
Q

Pink pale

A

Intermediate

36
Q

Muscle growth

A

Hypertrophy

37
Q

Muscle loss

Anat/Phys (19 decks)

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