Sarcoplasmic reticulum The sarcoplasmic reticulum is a special type of smooth ER found in smooth and striated muscle.
sarcoplasm The cytoplasm of a muscle cell. scale Any plate-like outgrowth of the integument, each in the form of a flat calcified or horny structure on the surface of the skin.
Sarcoplasmic reticulum An extensive intracellular compartment in muscle cells that sequesters Ca2+ and releases it in response to a nerve impulse, thereby initiating muscle contraction.
sarcoplasm The clear, semifluid cytoplasm between the fibrils of muscle fibers. sarcoptic mange Disease caused by mites of the genus Sarcoptes. Also called scabies.
In resting muscle fibers, Ca2+ is stored in the endoplasmic (sarcoplasmic) reticulum. Spaced along the plasma membrane (sarcolemma) of the muscle fiber are inpocketings of the membrane that form tubules of the "T system".
Disulfide bond formation and rearrangement. Disulfide bonds stabilize the tertiary and quaternary structure of many proteins. Sarcoplasmic reticulum. The endoplasmic reticulum found in muscle fibers is called sarcoplasmic reticulum.
Schäfer has worked out the minute anatomy of muscular fiber, particularly in the wing muscles of insects, which are peculiarly adapted for this purpose on account of the large amount of interstitial sarcoplasm which separates the sarco-styles.
See also: Trans, Organ, Protein, Muscle, Cells
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