The muscle system

What are the three types of muscles in the muscular system?

Skeletal, smooth, and cardiac.

What is the main function of skeletal muscles?

To enable voluntary movement by attaching to bones.

What are smooth muscles also referred to as in the intestines?

Visceral muscles.

Where are cardiac muscles located, and what is their primary function?

Only found in the heart; their primary function is to pump blood throughout the body.

What is the role of muscle fibers in the muscular system?

They are made up of myofibrils, which are the contractile structures of the cell.

What is the purpose of the endomysium in the muscular system?

It separates single muscle fibers and allows them to glide during muscle contraction.

What are sarcomeres and what are they made up of?

Sarcomeres are the functional unit of muscle fibers, made up of protein filaments called actin and myosin.

List some functions of the muscular system.

Movement, stability, protection, and temperature regulation.