* Only a 1 word answer for each blank. 1) A weight-lifter strains to lift a heav
ID: 3481012 • Letter: #
Question
* Only a 1 word answer for each blank. 1) A weight-lifter strains to lift a heavy weight and there is no movement of the person's arms holding on to the weight. This type of contraction is called a/an ________ contraction. 2) The sequence of processes that links the action potential to contraction is called _____ - _____ _____. 3) Where in the muscle cell does glycolysis take place? 4) The structural theory that explains how a muscle fiber contracts is called the _____ _____ _____. 5) Gently lowering a book involves _____ contraction of the triceps brachii, which means that the muscle is getting _____.
Explanation / Answer
1.isometric contraction. As there is no movement of the arm that's holding the weight and also the act is straining to lift and no actual lifting, which means no movement of muscle.
2.excitation-contraction coupling.
3.sarcoplasm. That is in the cytoplasm of muscle cells.
4.sliding filament theory. Muscle contraction in which the actin and myosin filaments of striated muscle slide over each other to shorten the length of the muscle fibers.
5.concentric contraction ;muscle is getting shortened. Because during concentric contraction the muscle involved shortens and as triceps shorten the lowering of book is facilitated.
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