Anatomy Cornell Notes Muscular System

Front

What is the muscular system?

Back

The muscular system is a group of tissues that work together to enable movement of the body and maintain posture.

Front

What are the three types of muscles in the human body?

Back

Skeletal, cardiac, and smooth muscles.

Front

What is the primary function of skeletal muscles?

Back

To facilitate voluntary movements of the body.

Front

What is the role of ATP in muscle contraction?

Back

ATP provides energy for the myosin heads to attach to actin.

Front

How are muscles attached to bones?

Back

Muscles are attached to bones by tendons.

Front

What is an antagonist muscle?

Back

An antagonist muscle opposes the action of the prime mover and relaxes during the motion.

Front

What is the difference between skeletal and cardiac muscles?

Back

Skeletal muscles are multinucleated and voluntary, while cardiac muscles are uninucleated and involuntary.

Front

What is the role of myosin in muscle contraction?

Back

Myosin heads bind to actin filaments and pull them to contract the muscle.

Front

What is the function of the Z-line in a sarcomere?

Back

The Z-line defines the boundaries of a sarcomere and anchors the actin filaments.

Front

What is muscle hypertrophy?

Back

Muscle hypertrophy is the increase in muscle size due to exercise and resistance training.