Wednesday, April 29, 2009
A Complex - Of The Formations Located Between
A complex - of the formations located between pleural bags from sides, a breast in front, a backbone behind and a diaphragm part from below, name -. Trachea and bronchial tubes. At level of VI VII cervical vertebras the throat passes in a trachea. The trachea - a piece of a respiratory tube from a throat to the main bronchial tubes the Throat, except , provides the prevention in a - trachea of alien particles, plays large role in the cough mechanism. The trachea - fibro-muskuljarnaja a tube of average 10 - 12 sm and 13 - 22 mm its Gleam remains width thanks to presence in a wall 15 - 20 the cartilages occupying 2/3,4/5 its circles both forming forward and lateral departments the Back department is called as a webby part. Between cartilages are located sheaves Outside a trachea it is covered by a case, from within - fur-trees a cover which is settling down on friable a layer In last are follicles and tubular glands, I produce a belkovo-mucous secret. The podslizistyj layer without sharp border passes in dense cartilages.
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