sliding filament mechanism- contraction Flashcards

1
Q

nerve impulses causes

A

depolarization of muscle fiber

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2
Q

depolarization causes

A

myosin filaments to pull actin filaments toward the center of the sarcomere

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3
Q

this pull of actin filaments makes

A

the sarcomere shorter

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4
Q

all of sarcomeres shorten and

A

muscle fiber contracts

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