Which of the Following Correctly Describes Skeletal Muscle

Question

Which of the following correctly describes skeletal muscle?
A) It is known as voluntary muscle.
B) It consists of short, branching fibers that fit together at intercalated discs.
C) It is found in the digestive tract, blood vessels, and airways.
D) It is called nonstriated because it does not appear striped when examined under a microscope.

Accepted Answer

Skeletal muscle is also known as voluntary muscle because it is under conscious control.

Answer: D
 Skeletal muscle is striated because of the arrangement of the actin and myosin filaments, giving it a striped appearance under a microscope. Short, branching fibers that fit together at intercalated discs are found in cardiac muscle, while smooth muscle is found in the digestive tract, blood vessels, and airways.