. Comparative anatomy. Anatomy, Comparative. Fig. 363.—A diagram illustrating the repeated branching of the collecting tubules in a nine weeks (30 mm.) human embryo. The diagram also shows the origin of secretory tubules from the nephrogenic tissue. (Redrawn from Braus, after Kampmeier.) before the development of the septum is completed, in an 11 mm. embryo, the urogenital sinus becomes subdivided into a vesico-urethral portion into which the ureter and mesonephric ducts enter, and a phallic portion CONNECTIVE TISSUE CAPSULE NEPHROGENIC TISSUE -COLLECTING TUBULE. GLOMERULUS BLOOD VESSEL Fig. 3
. Comparative anatomy. Anatomy, Comparative. Fig. 363.—A diagram illustrating the repeated branching of the collecting tubules in a nine weeks (30 mm.) human embryo. The diagram also shows the origin of secretory tubules from the nephrogenic tissue. (Redrawn from Braus, after Kampmeier.) before the development of the septum is completed, in an 11 mm. embryo, the urogenital sinus becomes subdivided into a vesico-urethral portion into which the ureter and mesonephric ducts enter, and a phallic portion CONNECTIVE TISSUE CAPSULE NEPHROGENIC TISSUE -COLLECTING TUBULE. GLOMERULUS BLOOD VESSEL Fig. 364. Section of the kidney of a 38 mm. human embryo. The section shows the branching of the collecting tubules and the relation of their terminations to the nephro- genic tissue from which the secretory tubules are derived. (Redrawn after Coming's "Htunan ;) which extends into the genital tubercle. By the time the embryo attains a length of 25 mm. (2 months), the ureters and mesonephric ducts are separated, the ureters open into the bladder, and the mesonephric ducts into the urethra. The bladder, therefore, arises not from the allantois. 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son
Size: 1615px × 1548px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublisherphi, booksubjectanatomycomparative
