Skeletal muscle is derived from the mesoderm. Myogenesis involves a continuous and dynamic series of biosynthetic and restructuring events that result in the molding of fetal tissue, ultimately leading to adult muscle with its distinct metabolic, structu
The sarcoplasmic reticulum (SR) in heart muscle releases a large amount of Ca 2+ in response to a small amount of trigger Ca 2+ by the mechanism of the Ca 2+ -induced Ca 2+ -release. A model was presented for the regulation of the SR Ca 2+ release based on the assumptions that ...
a defectin【答案】a defect in【核心短语/词汇】heart failure心脏衰竭【翻译】心脏衰竭通常是由心脏肌肉收缩的缺陷引起的。【解析】本题考查句型转换。“Heart failure is often caused by a defect in heart muscle contraction.”(心脏衰竭通常是由心脏肌肉收缩的缺陷引起的。),“a defect in”(...的缺陷),...
the reflexivemuscle contractionitprovokes, has the potential to induce strength gain in knee [...] powerplate.com powerplate.com 全身振动及其激起的反射性肌肉收缩,可以促进以前未受过训练的女性膝伸肌力量增长至以中等强度阻力训练才能达到的相同效果。
Muscle contraction depends on strictly controlled Ca2+ transients within myocytes. A major player maintaining these transients is the sarcoplasmic/endoplasmic reticulum Ca2+ ATPase, SERCA. Activity of SERCA is regulated by binding of micropeptides and im
Contractilityrepresents the performance of the heart at a givenpreloadand afterload, and it depends on the state of the excitation-contraction coupling processes within the cells (seeFigure 4-8). Contractility can be augmented by certain drugs, such asnorepinephrineand digitalis, and by an increase...
Excitation-contraction coupling can be defective when heart muscle cells grow larger in response to abnormal demands, such as high blood pressure. The defect may be explained by growth separating T tubules from SER, either physically or functionally, thereby decreasing the probability that Ca2+ enteri...
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Muscle is a soft tissue composed of elongated cells (muscle fibres) that produce force and motion through contraction. Involuntary cardiac and smooth muscles are responsible for contraction of the heart and movement of substances through hollow organ systems, respectively, and voluntary skeletal muscles...