sphincter

FREQ #31901

n. 括约肌 [医] 括约肌

发音

US /ˈsfɪŋk.tɚ/
其它

词形变化

sphincters 复数 sphincters sphincteres 复数

释义与例句

n.
  1. 1.

    A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.

    括约肌

    医学

    the sphincter of the bladder

    the iris sphincter in the eye

词汇关系

名词

上位词 2

muscle musculus

下位词 4

anal sphincter pyloric sphincter pyloric valve urethral sphincter

相关短语

sphincter of Oddi sphincter boy anal sphincter 肛门括约肌 pyloric sphincter 幽门括约肌 urethral sphincter [网络] 尿道括约肌 lower esophageal sphincter upper esophageal sphincter

词源

Etymology tree Late Latin sphinctērlbor. English sphincter Learned borrowing from Late Latin sphinctēr (“the muscle of the anus”), from Ancient Greek σφῐγκτήρ (sphĭnktḗr, “lace, band; contractile muscle”), ultimately of Pre-Greek origin. Possibly related to sphinx (“the strangler”).

来源：wiktionary