Abundant myoglobin is typical of which type of skeletal muscle fibers?
A) Type I
B) Type II

Question

Quizplus · Accepted Answer

Type I skeletal muscle fibers, also known as slow-twitch fibers, have a high concentration of myoglobin which gives them a red appearance. Myoglobin is important for oxygen storage and helps these fibers sustain prolonged contractions. Type II fibers, also known as fast-twitch fibers, have a lower concentration of myoglobin and rely more on anaerobic metabolism for energy.

Abundant Myoglobin Is Typical of Which Type of Skeletal Muscle