Involuntary muscle found in the walls of hollow, visceral organs; contracts slowly and sustains contractions.

Involuntary muscle found only in the heart; contracts steadily and rhythmically.

Voluntary muscle attached to bones; contracts strongly and rapidly.

Fibrous connective tissue that attaches muscle to bone.

Muscle attachment to the immovable bone.

Muscle attachment to the movable bone; moves toward the origin when the muscle is contracted.

The neurotransmitter responsible for muscle contraction that diffuses across the synapse.

The electrical current generated by the change in charge across the muscle cell membrane; leads to contraction of the muscle cell.

Occurs when a muscle becomes unable to contract due to oxygen debt.

States that the sarcomere shortens when thin and thick myofilaments slide past each other.