61. Transcribed Image Text: Each of the following statements is a particular step involved in the sliding filament theory of muscle contraction. If you numbered them in the order in

61. Transcribed Image Text: Each of the following statements is a particular step involved in the sliding filament
theory of muscle contraction. If you numbered them in the order in which they
occurred, with #1 representing the first step, which of the alternatives below
describes step#2 of your sequence?
Relaxation of the sarcomere occurs
O Action potentials reach the sarcoplasmic reticulum where Ca+ is released.
O Ca++ removes the blockage by tropomyosin
O Myosin binds to actin and cross bridges form