Examlex
Endorphins are the brain's own morphine.
Lactate
A compound produced during the anaerobic metabolism of glucose and used in the body as a source of energy.
Cross-bridge
The connection formed between the actin filament and the myosin head during muscle contraction.
Myosin Heads
Protrusions on myosin filaments in muscle cells that bind to actin filaments to generate muscle contraction.
Actin Molecules
Protein filaments that are part of the cytoskeleton in all eukaryotic cells, playing key roles in cell movement and shape.
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