Textbook of normal histology: including an account of the development of the tissues and of the organs . ection of eleven-day rabbit embryo, show-ing earliest stage of de-velopment of kidney asoutgrowth (k) fromWolffianduct (7v) into surroundingmesoderm (;«). THE URINARY ORGANS. 20 = the surrounding mesoderm, the epithelium of the kidney and of itsduct alone being the immediate product of the evagination. Theformation of the collecting tubes and the uriniferous tubules fol-lows the division and subdivision of the compartments into which theprimitive pelvis and calices separate, the entire elab
Textbook of normal histology: including an account of the development of the tissues and of the organs . ection of eleven-day rabbit embryo, show-ing earliest stage of de-velopment of kidney asoutgrowth (k) fromWolffianduct (7v) into surroundingmesoderm (;«). THE URINARY ORGANS. 20 = the surrounding mesoderm, the epithelium of the kidney and of itsduct alone being the immediate product of the evagination. Theformation of the collecting tubes and the uriniferous tubules fol-lows the division and subdivision of the compartments into which theprimitive pelvis and calices separate, the entire elaborate system oftubules resulting from the extension and branching of the primarycanals. The surrounding mesodermic tissue early differentiates alimiting zone or primitive capsule, which defines the form of thedeveloping kidney and opposes the growth of the tubules in a straightdirection, thereby inducing the marked tortuosity accompanying thesubsequent increase in the length of the uriniferous canals. The in- Fig. 248. vagination of the termination of thetubule and the simultaneous devel- Fig.
Size: 1352px × 1848px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorpiersolgeorgeageorgea, bookcentury1800, bookdecade1890
