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Trachea - Dictionary Definition and Overview |
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Trachea : (noun)
1: membranous tube with cartilaginous rings that conveys
inhaled air from the larynx to the bronchi [syn: windpipe]
2: one of the tubules forming the respiratory system of most
insects and many arachnids
Based on WordNet 2.0
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Trachea : \Tra"che*a\, n.; pl. Trache[ae]. [NL.,from L. trachia,
Gr. trachei^a (sc. ? windpipe), from ? rough, rugged: cf. F.
trach['e]e.]
1. (Anat.) The windpipe. See Illust. of Lung.
2. (Zo["o]l.) One of the respiratory tubes of insects and
arachnids.
3. (Bot.) One of the large cells in woody tissue which have
spiral, annular, or other markings, and are connected
longitudinally so as to form continuous ducts.
Based on Webster's Revised Unabridged Dictionary
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Trachea : Trachea: A tube-like portion of the breathing or "respiratory" tract that connects the "voice box" (larynx) with the bronchial parts of the lungs. 
Each time we inhale (breathe in), air goes into our nose or mouth, then through the larynx, down the trachea, and into our lungs. When we exhale (breathe out), the air goes out the other way.
The esophagus, the tube that carries food from the mouth to the stomach, is just behind the trachea and the larynx. The openings of the esophagus and the larynx are very close together in the
throat. When we swallow, a flap called the epiglottis moves down over the larynx to keep food out of the windpipe.
The trachea is also called the windpipe, weasand (sometimes written wesand or wezand) or wesil. "Cut his weasand with thy knife." The Tempest, Shakespeare.
Based on Webster's Revised Unabridged Dictionary (1913)
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