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Results for trachea

Definitions of trachea:

part of speech: noun

Windpipe; the air- tube extending from the larynx, at the level of the disc between the 6th and 7th cervical vertebrae, to the giving off of the bronchi, at the level of the disc between the 4th and 5th thoracic vertebrae; this point is called the bifurcation of the trachea. The trachea is composed of from 16 to 20 cartilaginous rings, connected by a membrane, the annular ligament; posteriorly the rings are defective for 1/ 5 to 1/ 3 of their circumference, the interval, forming the membranous wall, being closed by a fibrous membrane containing unstriped muscular fibers.

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