The lubricant in joints is known as:

Ability to receive and respond to stimuli.

A condition where about 50% of muscle mass is lost.

During muscle contraction, myosin cross bridges attach to the active site of which muscle component?

A narrow, prominent ridge of a bone is called:

Calcium ions bind to _______ molecule in skeletal muscle cells.

_________ is a round or oval opening through a bone.

The muscle decreases in muscle length during contraction but tension is the same.

Which of the following affect the strength or force of skeletal muscle contraction?

Group of inherited muscle-destroying diseases where muscles enlarge due to fat and connective tissue deposits, but muscle fibers atrophy.