Question

question 13 (2 points) the location at which force is actually generated within muscles is the myofilament fiber fascicle ca++ ion cross - bridge

Explanation:

Muscle force generation occurs at the cross - bridge. Cross - bridges are formed when myosin heads on the thick myofilaments bind to actin on the thin myofilaments. This binding and subsequent movement of the cross - bridges cause muscle contraction and force generation. Myofilaments are the components involved but the specific site of force generation is the cross - bridge. Fibers and fascicles are larger structural units of muscle, and Ca++ ions are involved in the regulation of muscle contraction but not the site of force generation.

Answer:

E. cross - bridge