Muscle Contraction Occurs When Actin and _______ Filaments Slide Past

Question

Muscle contraction occurs when actin and _______ filaments slide past one another.
A) neural
B) myosin
C) lactic acid
D) synaptic

Accepted Answer

Muscle contraction occurs when the myosin filaments slide past the actin filaments. The attachment of myosin to actin causes the filaments to slide past each other, which results in a shortening of the muscle fiber and a contraction.