| 词汇 | sphincter |
| 释义 | sphincter noun[ C ] anatomy specializeduk /ˈsfɪŋk.tər/ us /ˈsfɪŋk.tɚ/ a muscle that surrounds an opening in the body and can tighten to close it: 括约肌 the anal sphincter肛门括约肌 a sphincter muscle括约肌 Substances & structures in the body abductor accessorius ACL actin adductor fundus funiculus fusiform glomerular glomerulus myosin navicular neuroendocrine neurohormonal neurohormone tendinis tendinous tendinum tendo tensor Examples of sphinctersphincter This overrides any myenteric plexus stimulation so that the sphincter relaxes. Sphincter defects were seen in 40% of multiparae antenatally but only 4% developed new defects. The sphincter can also be used to treat severe stress incontinence in women, particularly if previous surgery has failed. This makes it possible for liquid stools to be eliminated involuntarily through an inhibited sphincter mechanism. This propels the bolus to the stomach through the lower oesophageal sphincter. In 20% of these patients incomplete voiding occurs due to dyssynergic contraction of the detrusor and sphincter muscles or due to mechanical outflow obstruction. It includes 18 items covering independence in self-care, sphincter control, mobility, locomotion, communication and social cognition. The 23 women who delivered by caesarean section were asymptomatic and showed no evidence of new sphincter defects. These are all features of resonance and occur when the velopharyngeal sphincter does not close adequately, allowing air to escape into the nose during speech. Sphincter surgery should only be carried out by surgeons with an interest who are performing several such operations every year. In the present study, injections of the anterior chamber were used to label the postganglionic and preganglionic afferents to the iris sphincter pupillae muscle. It is of little value in the management of incontinence due to detrusor instability or sphincter incompetence. Manometry shows non-peristaltic, sustained, high amplitude contractions with, commonly, a normal lower oesophageal sphincter pressure. The distal part of each uterus provides a fertilization chamber filled with spermatozoa, followed by a sphincter-like part. Caesarean section was associated with a decrease in the internal core of the urethral sphincter but not the rhabdosphincter. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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