Respuesta :

Answer:

Skeletal muscle allows the body to move. ... The sliding filament theory of muscle contraction describes how actin and myosin slide over each other, causing the myofibrils to shorten, which in turn causes muscle fibers to contract.

Explanation:

Answer: Muscle cells are excitable; they respond to a stimulus. They are contractile, meaning they can shorten and generate a pulling force. When attached between two movable objects, in other words, bones,contractions of the muscles cause the bones to move