Exam 20: How Animals Move

​M arathon runners tend to have a high percentage of ____ in their leg muscles.

When a muscle contracts, the opposing muscle with which it is paired will ____.

Compact bone contains ____.

The enzyme lipoprotein lipase ____.

The bones of synovial joints are held in place by ____.

A tendon is an extension of ____ tissue.

The sliding-filament model of muscle contraction is described by the action of ____ pulling ____ inward.

In the accompanying figure, the structure labeled "B" is a ____.

The contractile unit of a skeletal muscle fiber is a(n)____.

Bones are wrapped in ____ tissue.

The joint between vertebrae is an example of a ____ joint.

Relaxed muscles, such as those generated by prolonged sitting, ____, resulting in ____.

In a muscle contraction event, ____ causes the release of calcium from the sarcoplasmic reticulum.

In humans, the ____ bone is found in the pectoral girdle.

Aerobic respiration increases ____.