The Throat And Its Functions in Swallowing, Breathing And the Production of the Voice. ... Illus
The book The Throat And Its Functions in Swallowing, Breathing And the Production of the Voice. ... Illus was written by author Louis Elsberg Here you can read free online of The Throat And Its Functions in Swallowing, Breathing And the Production of the Voice. ... Illus book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Throat And Its Functions in Swallowing, Breathing And the Production of the Voice. ... Illus a good or bad book?
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iv, a, a), two, unite to form respectively the right bronchus, which is about the fourth of an inch in diameter and about an inch in length, and the left bronchus, which is nar- rower than the right, but about twice its length. The trachea or windpipe (weasand), is a cylindroid tube, (see Fig. iv) cylindrical in front and on the sides and flat be- hind (see Fig vii), about four inches long, from three-fourths to an inch in breadth, and one-half to three-quarters of an inch in depth. It is compo...sed of a series of incomplete cartilagi- nous rings, varying irregularly from sixteen to twenty in number, connected by a fibro-elastic membrane, and is lined with a mucous membrane continuous above with the lining of the larynx and below with that of the bronchial tubes. The cartilaginous rings are somewhat horse-shoe shaped, because 28 THE THROAT AND ITS FUNCTIONS. they are imperfect at their posterior third, which gives a sec- tion of the tube the tunnel-shaped appearance seen in Fig, vii. The posterior interval of the cartilaginous rings is occupied by a loose fibrous membrane and an internal layer of pale, unstri- ated muscular fibres in a transverse direction.
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