Question

question 3
0.75 pts
most skeletal muscles are made of ________.
muscle fibers of the same type
a mixture of fiber types
a predominance of slow oxidative fibers
a predominance of fast oxidative fibers

Explanation:

Skeletal muscles are composed of different types of muscle fibers. Slow - oxidative fibers are good for endurance activities, fast - oxidative fibers have a balance of speed and endurance, and there are also fast - glycolytic fibers. Most skeletal muscles have a combination of these fiber types to perform a variety of functions. For example, muscles used for both short - burst and sustained activities need different fiber types. A muscle that is only made of one type of fiber (like only slow - oxidative) would be limited in its function. Muscles need a mixture to handle different demands.

Answer:

a mixture of fiber types