What are the characteristics of Type II (fast twitch) muscle fibers?
A)Larger size
B)More capillaries, mitochondria and myoglobin
C)More force produced
D)Answers A and C

Question

Quizplus · Accepted Answer

Type II (fast twitch) muscle fibers are characterized by their larger size and ability to produce more force. Type II muscle fibers actually have LESS capillaries, mitochondria, and myoglobin than Type I muscle fibers.

What Are the Characteristics of Type II (Fast Twitch) Muscle