sliding filament mechanism- contraction Flashcards
1
Q
nerve impulses causes
A
depolarization of muscle fiber
2
Q
depolarization causes
A
myosin filaments to pull actin filaments toward the center of the sarcomere
3
Q
this pull of actin filaments makes
A
the sarcomere shorter
4
Q
all of sarcomeres shorten and
A
muscle fiber contracts