. Animal biology. Zoology; Biology. Glomeru/us Uesofiephn'c cfucf /\/ephrosfonie Coe/om B. Glomerulus Ureter- Bowman's capsu/e Fig. 217.—Diagrams to show relations of kidney tubules. A, pronephros; 5, mesonephros; C, metanephros. mesonephric tubule, while still opening into the coelom, takes the excretions from a knot of capillaries known as a glomerulus. The third type, or metanephros, originates still farther posteriorly; the metanephric tubules do not communicate with the coelom, but each ends in a cuplike cavity inclosing a glomerulus. These appear to form both a phylogenetic and an ontoge
. Animal biology. Zoology; Biology. Glomeru/us Uesofiephn'c cfucf /\/ephrosfonie Coe/om B. Glomerulus Ureter- Bowman's capsu/e Fig. 217.—Diagrams to show relations of kidney tubules. A, pronephros; 5, mesonephros; C, metanephros. mesonephric tubule, while still opening into the coelom, takes the excretions from a knot of capillaries known as a glomerulus. The third type, or metanephros, originates still farther posteriorly; the metanephric tubules do not communicate with the coelom, but each ends in a cuplike cavity inclosing a glomerulus. These appear to form both a phylogenetic and an ontogenetic series. The pronephros is functional only in the lowest group of vertebrates; although it appears early in the embryological development of all higher forms, only vestiges remain in the adults of the highest. The mesonephros is functional up to and including the. 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 Wolcott, Robert Henry, 1868-1934. New York ; London : McGraw-Hill Book Company, Inc.
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