| 单词 |
hypotonicity |
| 释义 |
hypotonicity|ˌhaɪpəʊtəˈnɪsɪtɪ|
[f. prec. + -ity.]
The condition of being hypotonic. a. Physiol. Of a solution (see hypotonic a. 1 a): the extent to which a solution has a lower osmotic pressure than some other.
1906Amer. Jrnl. Physiol. XV. 367 Osmotic changes in the direction of hypotonicity. 1939A. Krogh Osmotic Regulation Aquatic Animals 66 Enid Edmonds..found a slight but definite hypotonicity, viz. ocean water 622 mM., blood of the crab 577 mM. 1972Lancet 2 Dec. 1160/2 Hypotonicity of the plasma was observed only on the 3rd and 4th postoperative days, when the daily intake of isotonic dextrose exceeded 1500 ml.
b. Med. Of muscle or muscular tissue (see hypotonic a. 2); = hypotonia 2.
1910A. Abrams Diagn. Therapeutics v. 711 This hypotonicity of the muscles..may also be noted in executing other unaccustomed movements of the muscles of the hand. 1934C. J. Wiggers Physiol. Health & Dis. (1935) xlix. 765 Gastric hypotonicity does not necessarily interfere with emptying the stomach, because the tone of the pyloric sphincter is also reduced, and consequently less intragastric pressure is required to expel the chyme. 1959E. B. Smith et al. Princ. Human Path. lv. 912/1 The hypercalcemia causes interesting clinical findings incident to..hypotonicity of muscle. |
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