Overview of the Muscular System

Skeletal muscles interact to produce movements by way of anatomical positioning and the coordinated summation of innervation signals.

The anatomical arrangement of skeletal muscle fascicles can be described as parallel, convergent, pennate, or sphincter.

Muscles are arranged in groupings of agonist, antagonist, and synergists that produce and modulate movement.

Tendons are composed of connective tissue that attaches muscle to bone.

Skeletal muscles are grouped into fascicles, which are bunches of muscle fibers surrounded by a perimysium.

Arrangement of muscles allows them to move relative to one another, while the insertion joint acts as the pivot point for a lever system.