Muscular System

Front

What is the role of an antagonist muscle?

Back

An antagonist muscle opposes or reverses the action of a prime mover muscle.

Front

Which type of muscle is responsible for pumping blood in the heart?

Back

Cardiac muscle is responsible for pumping blood in the heart.

Front

What is a sarcomere?

Back

The sarcomere is the functional contractile unit within a muscle fiber.

Front

What is the thick filament of the sarcomere known as?

Back

The thick filament of the sarcomere is known as myosin.

Front

Which type of muscle is found in the stomach, bladder, and intestines?

Back

Smooth muscle is found in the stomach, bladder, and intestines.

Front

What is the primary function of skeletal muscle?

Back

The primary function of skeletal muscle is to facilitate voluntary movement of the body.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles are controlled consciously (e.g., skeletal muscles), while involuntary muscles operate without conscious control (e.g., smooth and cardiac muscles).

Front

What is the role of myofibrils in muscle fibers?

Back

Myofibrils are the contractile threads found in striated muscle cells, responsible for muscle contraction.

Front

What is actin?

Back

Actin is a protein that forms the thin filaments in muscle fibers and plays a crucial role in muscle contraction.

Front

What is the function of tendons?

Back

Tendons connect muscles to bones, allowing for movement when muscles contract.