Which of the following types of muscle fibers are best adapted for prolonged contraction such as standing all day?
A) uninucleated fibers
B) striated fibers
C) fast fibers
D) slow fibers
E) intermediate fibers
Question 2
Large-diameter, densely packed myofibrils, large glycogen reserves, and few mitochondria are characteristics of
A) slow fibers.
B) intermediate fibers.
C) fast fibers.
D) red muscles.
E) fatty muscles.