Which muscle fiber type would be affected most severely by a decrease in blood flow?  Think about what the blood brings to muscle fibers and which muscle fibers are most in need of a constant blood supply during exercise.

A whole skeletal muscle is generally controlled by a single motor neuron.

Slow oxidative (red) muscle fibers contain (or are surrounded by) more ____ than fast glycolytic (white) fibers:

Each of these is a connective tissue structure associated with skeletal muscles except:

When bicycling for a very long period of time, the fibers of your leg muscles will generate most of their ATP by using:

Select all of the following that can cause a skeletal muscle to contract with more force (four answers are correct):

During which phase on the myogram are calcium levels in the cytosol of the muscle fibers decreasing?

Crossbridge formation is important for ____________ and involves the binding of ________________.

Which electrolyte/ion binds with troponin, resulting in the movement of tropomyosin away from the binding sites on actin for myosin heads?

John is a sprinter who specializes in quick and powerful bursts of speed followed by periods of rest. Jim is a marathon runner who specializes in long, steady runs. Compared to John, Jim is likely to have