Which Major Type of Muscle in Humans Has a Primary

Question

Which major type of muscle in humans has a primary function in movement?
A) smooth
B) cardiac
C) skeletal
D) endothelial

Accepted Answer

Skeletal muscles are responsible for providing the force needed for movement in the body. They are attached to bones through tendons and work in pairs to allow for the coordinated movement of limbs and other body parts. Smooth muscle is found in the walls of internal organs and has a primary function in involuntary, visceral movements such as those involved in digestion. Cardiac muscle makes up the heart and is responsible for pumping blood throughout the body. Endothelial cells are a type of cell lining the interior surface of blood vessels and play a role in regulating blood flow and blood pressure, but are not considered a major type of muscle.