While examining a sample of muscle tissue under a microscope, you notice that the cells have a single nucleus. The fibers are striated and heavily branched. Which muscle type does this sample contain?
A)Skeletal muscle
B)Smooth muscle
C)Cardiac muscle
D)Striated muscle

Question

Quizplus · Accepted Answer

Cardiac muscle cells have a single nucleus and the fibers are striated and heavily branched. Skeletal muscle cells are also striated but are not heavily branched. Smooth muscle cells are not striated and do not have branches. Striated muscle is a general term that includes skeletal and cardiac muscle, but the single nucleus and branching pattern narrow it down to cardiac muscle.

While Examining a Sample of Muscle Tissue Under a Microscope