Question

multiple choice question identify the myosin structure labeled a myosin tail cross - bridge myosin head

Explanation:

Myosin is a motor protein involved in muscle - contraction. The part of myosin that binds to actin filaments during muscle contraction is the myosin head. The structure labeled A in the diagram is the myosin head which forms cross - bridges with actin filaments during muscle contraction.

Answer:

myosin head