One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle fibers
A) have several nuclei, while skeletal muscle fibers do not.
B) are not striated, while skeletal muscle fibers are.
C) are under voluntary control, while skeletal muscle fibers are not.
D) branch and form complex networks, while skeletal muscle fibers do not.
E) are cylindrical-shaped, while skeletal muscle fibers are spindle-shaped.

Question

Quizplus · Accepted Answer

Cardiac muscle fibers branch and form complex networks, allowing for the coordinated contraction necessary for pumping blood, whereas skeletal muscle fibers are long, cylindrical, and do not branch, facilitating voluntary movements.

One Difference Between Cardiac Muscle Fibers and Skeletal Muscle Fibers