. The physiology of the domestic animals; a text-book for veterinary and medical students and practitioners. Physiology, Comparative; Domestic animals. Pig. 65.—Diagrammatic Section of Snail. (Wilson.) A, foot; B. operculum: C, tentacles: D. mouth; E. sali- vary glands; F, stomach; G G, intestines; H. anus: I, liver; Iv, aperture of gill-chamber: M. oviduct; N. gill-chamber: 0, floor of gill-chamber; P, gill of breathing organ; ST, heart; W, cephalic, X, pedal, and Y, branchial ganglia. Fig. 66.—Diagrammatic Section of a Female Cephalopod (Sepia offici- nalis). (Huxley.) A, buccal mass surroun
. The physiology of the domestic animals; a text-book for veterinary and medical students and practitioners. Physiology, Comparative; Domestic animals. Pig. 65.—Diagrammatic Section of Snail. (Wilson.) A, foot; B. operculum: C, tentacles: D. mouth; E. sali- vary glands; F, stomach; G G, intestines; H. anus: I, liver; Iv, aperture of gill-chamber: M. oviduct; N. gill-chamber: 0, floor of gill-chamber; P, gill of breathing organ; ST, heart; W, cephalic, X, pedal, and Y, branchial ganglia. Fig. 66.—Diagrammatic Section of a Female Cephalopod (Sepia offici- nalis). (Huxley.) A, buccal mass surrounded by the lipB, and showing the horny jaws and tongue; B, oesophagus ; C, salivary gland ; D. stomach ; E, pyloric caecum ; F, the funnel; G, the intestine; H, the anus; I, the ink-bag; K, the place of the systemic heart; L, the liver: N, the hepatic duct of the left side ; O, the ovary ; P, the oviduct; Q, one of the apertures by which the atrial system, or water chambers, are placed in communication with the ex- terior ; R, one of the branchise; S, the principal ganglia around the oesophagus: M, the mantle ; SH, the internal shell, or cuttle-bone; 1, 2, 3, 4,5, the margins of the foot, constituting the so-called arms of the sepia. being accompanied by the appearance of definite organs of circulation and of the nervous system. In vertebrates the complexity and perfection of the alimentary canal lias advanced still further, and we find in them that the buccal cavity, which in fish and amphibians is single, in the reptiles is divided into two divisions,—a nasal or respiratory portion and a buccal or digestive 14. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smith, Robert Meade, 1854-. Philadelphia and London, F. A. Davis
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysiol, bookyear1890
