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Sf1 > Test 2 > Flashcards

Test 2 Flashcards

1
Q

bHLH

A

Basic helix loop helix. Structural region on MyoD that is required for activity

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2
Q

E box

A

Binding site in DNA for myogenic factors

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3
Q

Excitation-contraction coupling

A

Physiological process of converting an electrical stimulus to the muscle into a contraction

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4
Q

Myogenic

A

Muscle

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5
Q

Power stroke

A

Molecular interactions between actin and myosin that lead to muscle contraction

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6
Q

Sarcolemma

A

Plasma mem of skeletal muscle cells

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7
Q

Satellite cells

A

Stem cells found in skeletal muscle fibers that promote repair and regeneration

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8
Q

SERCA

A

Sarcoendoplasmic reticulum calcium ATPase. Pump located in sarcoplasmic reticulum (SR) that transports Ca2+ from cytoplasms into SR

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9
Q

Summation contraction

A

Short duration contraction caused by consecutive action pot

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10
Q

Tetanus contraction

A

Steady, prolonged contraction caused by continuous stimulation

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11
Q

Twitch contraction

A

Single muscle contraction caused by one action pot

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12
Q

Active tension

A

Force generated by formation of actin-myosin crossbridges

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13
Q

Cachexia

A

Dramatic muscle atrophy seen in patients with chronic illness

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14
Q

Isometric contraction

A

Length constant, tension changes

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15
Q

Isotonic contraction

A

Tension constant, length changes

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16
Q

Motor unit

A

Single motor neuron and all muscle fibers it in rebates

17
Q

Myopathy

A

Disease of skeletal muscle not caused by nerve disorders

18
Q

Myositis

A

Inflammation of skeletal muscles

19
Q

Passive tension

A

Force generated by stretching muscle

20
Q

Rhabdomyolysis

A

Rapid destruction of skeletal muscle cells

21
Q

Sarcopenia

A

Age related reduction in skeletal muscle mass and strength

22
Q

Total tension

A

Force generated by both crossbridge formation and stretching muscle

Sf1 (2 decks)

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