| 单词 | plain muscle |
| 释义 | > as lemmasplain muscle plain muscle n. smooth muscle (see smooth adj. 1b(a)). ΚΠ 1895 New Sydenham Soc. Lexicon Plain muscles, unstriated muscles, as opposed to striated muscles. 1940 G. S. Carter Gen. Zool. Invertebr. xviii. 366 Both striped and plain muscle may remain for long periods in a state of partial contraction. This is called tonic contraction and the extent to which the muscle is contracted during such a contraction is called the tone of the muscle. 1981 Philos. Trans. (Royal Soc.) B. 294 492 Two bands of cilia are present, as too is a sphincter of plain muscle. < as lemmas |
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