Examlex
On the topic of continuous versus discontinuous development, learning theories
Sarcomere Contraction
The process of muscle fibers shortening, caused by the sliding of actin and myosin filaments within the sarcomere, the fundamental unit of muscle contraction.
Myosin
ATP-dependent motor protein; makes up the thick filaments in a sarcomere.
Actin
A globular protein that forms filaments, which are vital components of the cytoskeleton in all eukaryotic cells, involved in cell movement and structure.
Cross Bridge
A myosin projection on a muscle cell that connects with actin to contract muscle fibers, fundamental in muscle contraction.
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