单词	contractile
释义	contractile /kənˈtraktʌɪl / adjective Biology & Physiology Capable of or producing contraction: the contractile activity of the human colon... Smooth muscle fibers usually contract slowly but are capable of sustained contractile activity. Good correlation exists between findings in vitro and the observed contractile properties in vivo. Smooth muscle cells possess a contractile apparatus consisting of actin and myosin filaments and the cytoskeleton. Derivatives contractility /kɒntrakˈtɪlɪti / noun ... Hypercapnia can also decrease respiratory muscle contractility, leading to a vicious circle of carbon dioxide retention. Activation of the adrenergic system triggers the release of catecholamines, which stimulate contractility, heart rate, and blood pressure and promote myocyte hypertrophy. Studies performed in undernourished patients without respiratory disease have suggested that malnutrition may impair skeletal muscle contractility.
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