Serves as the actual "go" signal for muscle contraction
neurotransmitter substance released at motor end plates by the motor neuron
Normally stored in the sarcoplasmic reticulum
A metabolic pathway that produces water, carbon dioxide, and ATP, and provides for a large amount of ATP per glucose because oxygen is used
A reserve, high-energy compound used to convert ADP to ATP by the tranfer of a high-energy phosphate group
The gap between the motor neuron and the muscle fiber it supplies is called the
The sliding filament theory of muscle contraction involves sliding of the
The only energy source that can be used to directly power muscle activity
A smooth, sustained contration is called
The end of the muscle that moves when a muscle contracts is called the
The movement that is commonly seen in a ball-in-socket joint is
Movement that decreases the angle between two bones; bending the knee
Movement along the frontal plane, away from the body midline; raising the arm laterally.
Circular movement around the longitudinal bone axis; shaking the head "no."
Describing a cone-shaped pathway with the arm.
Moving the hand into a palm-up (or forward) position
Movement of the superior aspect of the foot toward the leg; standing on one's heels.
Turning the sole of the foot medially
Only ______ muscle cells are multinucleated
The muscle tissue that is normally arrhythmic is ______ muscle
Only ______ muscle cells branch
Muscle is often attached to bone b strong, cordlike structures called _______
The ___ zone of a sarcomere contains no actin
The heads of the myosin myofilaments are called _______