Muscular System Review

Front

Which muscle type is voluntary?

Back

Skeletal muscle is the only voluntary muscle type in the human body.

Front

What are sarcomeres?

Back

Sarcomeres are the repeating contractile units that make up myofibrils, which are found in muscle fibers.

Front

What is the perimysium?

Back

The perimysium is a connective tissue sheath that surrounds fascicles (bundles of muscle fibers).

Front

What causes botulism?

Back

Botulism is caused by a toxin that inhibits acetylcholine, a neurotransmitter essential for muscle contraction.

Front

What is lactic acid?

Back

Lactic acid is a byproduct of glucose breakdown during prolonged exercise without adequate rest.

Front

What are the three types of muscle tissue?

Back

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

Front

What is the function of skeletal muscle?

Back

Skeletal muscle is responsible for voluntary movements and is attached to bones.

Front

What is the role of acetylcholine in muscle contraction?

Back

Acetylcholine is a neurotransmitter that transmits signals from nerves to muscles, triggering contraction.

Front

What is the difference between smooth and cardiac muscle?

Back

Smooth muscle is involuntary and found in organs, while cardiac muscle is involuntary and found in the heart.

Front

What is the epimysium?

Back

The epimysium is a connective tissue layer that surrounds the entire muscle.