1. Which of the following is a FALSE statement about the mechanism of skeletal muscle contraction?
(Check all that apply)
When the impulse stops, calcium ions are actively transported into the sarcoplasmic reticulum.
Myosin heads bind to actin to form crossbridges.
Myosin head pivot, moving thin filaments away from the sarcomere center.
the repeating cycle of attach-pivot-detach-return slide thick and thin filaments past one another.
Crossbridges are formed in the absence of