Constriction of a blood vessel, as by a nerve or drug. 血管缩小血管的缩小,如由于紧张或药物
watch for pupil constriction and convergence. 手指平稳地向鼻柱移动,观察瞳孔收缩会聚。
Eventually, unable to bear the constriction of family life, he left home. 他不能忍受家庭生活的那种被勒著的感觉,最后他离开了家。
constriction
[ noun ]
a narrowing that reduces the flow through a channel
<noun.shape>
tight or narrow compression
<noun.event>
a tight feeling in some part of the body
<noun.cognition> he felt a constriction in her chest she felt an alarming tightness in her chest emotion caused a constriction of his throat
the action or process of compressing
<noun.act>
Constriction \Con*stric"tion\, n. [L. constrictio: cf. F. constriction.] 1. The act of constricting by means of some inherent power or by movement or change in the thing itself, as distinguished from compression.
2. The state of being constricted; the point where a thing is constricted; a narrowing or binding.
A constriction of the parts inservient to speech. --Grew.
Stenosis of the aorta is a constriction of the main artery pumping blood from the heart and can be corrected by surgery.
Asthma patients suffer from constriction of bronchial passages that causes wheezing and shortness of breath. Bronchodilators provide immediate relief by relaxing muscles to help open up the passages.
A medical bulletin issued by the government press office Friday said the 69-year-old premier, who flew to London on Thursday, would have additional tests to assess the extent of constriction in the aorta, the main artery that pumps blood to the heart.
"Winking helps the circulation of tears, both by increasing drainage and by causing constriction of the lacrimal gland," says the "Encyclopedia of the Eye." It's worrisome, of course, when a person suddenly loses the ability to wink.