What are the two distinct ways of controlling the force produced by a muscle

Skeletal Muscle Physiology

(50 pts)

1. Explain the 7 steps inherent of activation of skeletal muscle at the neuromuscular junction shown in the video. (7 pts)
2. What is the cross-bridge cycle? (5 pts)
3. a) What is a motor unit?  (3 pts)
4. b) What are the two distinct ways (list and describe) of controlling the force produced by a muscle (i.e. motor recruitment strategies)?  (5 pts)