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Muscle Exam >> Introductory Human Physiology

Introductory Human Physiology – All Quizzes Exam Pack (100% Correct)

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1 point

the twitch would last the same amount of time

the twitch would be shorter

the twitch would produce more tension

the twitch would last longer

1 point

fused tetanus would be reached sooner than an untreated fiber

the maximal tension would be increased compared to an untreated fiber

fused tetanus would be reached in the same amount of time as an untreated fiber

fused tetanus would be reached later than an untreated fiber

1 point

the myosin filaments

the actin filaments

the actin only band (I band)

the myosin band (A band)

1 point

slow-oxidative, fast-oxidative, fast-glycolytic

fast-glycolytic, fast-oxidative, slow-oxidative

slow-oxidative, fast-glycolytic, fast-oxidative

fast-oxidative, slow-oxidative, fast-glycolytic

1 point

amino acid concentration in the cytoplasm

glucose concentration in the cytoplasm

glycogen concentration in the cytoplasm

Ca+2 concentration in the cytoplasm

1 point

both cardiac muscle and single-unit smooth muscle

single-unit smooth muscle only

multi-unit smooth muscle only

cardiac muscle only

both cardiac muscle and multi-unit smooth muscle

1 point

Na+/Ca+2 exchanger

SR Ca+2 release channel (ryanodine receptor)

L type Ca+2 channel

SR Ca+2 ATPase

1 point

dense bodies

troponin–tropomyosin complexes

thin filaments

myosin ATPase activity

1 point

activate with the influx (entry) of Cl-

activate with the efflux of Na+

always reach threshold

vary in size

Muscle Exam >> Introductory Human Physiology

Introductory Human Physiology – All Quizzes Exam Pack (100% Correct)

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