[Campbell Biology P.928] Regarding skeletal muscle, which of the following statements is acc... | Practice Question
Regarding skeletal muscle, which of the following statements is accurate?
A: It is responsible for involuntary body activities, such as the churning of the stomach.
B: It lacks striations and its cells are spindle-shaped.
C: It forms the contractile wall of the heart and has branched fibers.
D: During development, its fibers form by the fusion of many cells, resulting in multiple nuclei in each muscle fiber.
Explanation
Skeletal muscle fibers are formed from the fusion of many embryonic cells, which results in them being multinucleated. This is a distinguishing feature from other muscle types.