The Human Species Considered From the Standpoints of Comparative Anatomy, Physiology, Pathology And Bacteriology
The book The Human Species Considered From the Standpoints of Comparative Anatomy, Physiology, Pathology And Bacteriology was written by author Hopf, Ludwig, B. 1838 Here you can read free online of The Human Species Considered From the Standpoints of Comparative Anatomy, Physiology, Pathology And Bacteriology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Human Species Considered From the Standpoints of Comparative Anatomy, Physiology, Pathology And Bacteriology a good or bad book?
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In birds the kidneys are embedded in the cavity between the transverse processes of the coccygeal vertebrae and consist usually of three lobes, sometimes united ; the ureters, which generally originate at the inner margin, open separately into the cloaca. The development of the mam- malian kidneys does not diiTer from -that of the reptiles and birds.i At first the kidney is unilobular ; later it is divided into lobes through separation of the glandular parenchyma, whereby the tubuli uriniferi i...n each lobe (see Fig. 76) combine to form a papilla, and the renal calyces unite to ■form the pelvis of the kidney (see Fig. "jt). The number of lobes varies considerably but can always be ascertained from the number of the different papillae, simple and compound. The seals, bear and otter possess a small number of dis- ^ C. Gegenbauer, Vergl. Anat., p. 867. Fig. 75. Wolffian bodies of the human em- bryo. (Kobelt.) u, Tubuli urinif. ; m, Miillerian duct ; w, Wolffian duct. 138 THE HUMAN SPECIES tinct lobes.
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