Muscular System CH 8 Practice Test

Front

What is the function of tendons in the muscular system?

Back

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

Front

What is the role of the biceps muscle?

Back

The biceps muscle is responsible for flexing the elbow and rotating the forearm.

Front

What is the role of the triceps muscle?

Back

The triceps muscle is responsible for extending the elbow.

Front

Define the neuromuscular junction.

Back

The neuromuscular junction is the point where the axon terminals of a nerve cell meet the sarcolemma of a skeletal muscle, facilitating muscle contraction.

Front

What is the sarcolemma?

Back

The sarcolemma is the cell membrane of a muscle fiber, which encloses the muscle cell.

Front

What is the function of the sarcoplasmic reticulum?

Back

The sarcoplasmic reticulum stores calcium ions, which are essential for muscle contraction.

Front

What is myoglobin and its function?

Back

Myoglobin is a protein in muscle cells that binds oxygen, facilitating oxygen storage and transport for muscle metabolism.

Front

What are cross bridges in muscle contraction?

Back

Cross bridges are formed when myosin heads attach to actin filaments, enabling muscle contraction.

Front

What is the role of ATP in muscle contraction?

Back

ATP provides the energy required for muscle contraction and relaxation.

Front

What are the three types of muscle tissue?

Back

The three types of muscle tissue are skeletal, cardiac, and smooth muscle.