Identifier: elementsofanimal00ange (find matches)
Title: Elements of animal physiology, chiefly human
Year: 1873 (1870s)
Authors: Angell, John
Subjects: Physiology Anatomy Physiology Anatomy
Publisher: New York : Putnam
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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f the lymphatic system. It is about 18 or20 inches long, and about the diameter of a moderatesized goose-quill. Commencing in the abdomen, some-where opposite the second lumbar vertebra, it passesthrough the diaphragm by the aortic opening, ascendingnear the vertebral column to the neck; it then curvesdownward, and joins the subclavian vein at the angleformed by its junction with the jugular vein. Itsstructure is very similar to that of the veins, and it isnumerously supplied with valves (see fig. 59). The rightlymphatic duct is small and unimportant; it containsno chyle. 273. The Lacteals are the hjm-phatio vessels of theH B, -J 130 ANIMAL PHYSIOLOGY. intestines. They are so called because of their millcxjappearance, when filled with chyle, two or three hoursafter a meal. The primary lacteals commence in the LymTiliatics ami LyiriiMiatic Glands ol head aud iieck, riglit. T.i;iht internal Jugulnr, Vein.lUglit Subclavian Vein, Lymphatics and Glands.til rijjlit ana Eeecxitaculura Cbyli.
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Ljiaphaics ami Lymiiliatic Glai d; of head and, uec!: left. horacic Liuct. Left SubeaviuuYcui. •Tlioiacic Du..t. .r.cteals and Mes-enteric Glands. Lym)>batic3 and Wp^Byj;BHPiE!MS^HISyiytfSS?WPWBHL^yl^^^^°^luwetLymphatic kUukI? cf 4S0l»»#KwSKBSlMBS»HlWi9HMr e.\tremitits.lower extrj-nlticu Fig. 59. Showing the Principal Lymphatics of the Human Body.The small nodular bodies are the Lymphatic Glands. middle of the villi of the intestines, where they formmicroscopic club-like tubes, or minute microscopicplexuses. (See fig. 59.) THE CHYLE. 131 274. The Lymphatics are the vessels which ahsorh andelaborate the lymj^h, and convey it to the tJioraciG duct.For a long time the smaller lymjDhatics escaped detec-tion, because of the transioarency of their walls and ofthe contained lymi^li. There are two sets of lymphatics—the deep and the superficial. They are distributed toall parts of the body, except the brain, the spinal cord,and the interior of the eye. (See fig. 59). 275. The Lymph

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