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MUSCLE 101

Horizontales
Thin filament
Neurotransmitter that signals muscle contraction
Powers muscle contraction
Generates ATP aerobically; often called the "powerhouse" of muscle cells
Thick filament
Most abundant macromolecule in muscle after water
Rapid ATP regenerator during high-intensity muscle actions
Anatomical term for a muscle cell
Basic single contraction unit
Verticales
Electrical event that stimulates activities resulting in contraction
Product of anaerobic ATP formation
_______ moves across muscle cell membranes to create and propagate an action potential
Connects skeletal muscle to bone
Muscle cell membrane
Key mineral that triggers contraction