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  • Title: [Microscopic anatomy of the triton kidney].
    Author: Goncharevskaia OA, Szemeredi K.
    Journal: Arkh Anat Gistol Embriol; 1984 Jan; 86(1):95-100. PubMed ID: 6712491.
    Abstract:
    The structure of the nephron, length of all its segments and the renal architectonics as a whole have been studied in the newt (Triturus vulgaris L.) by means of microdissection and microinjection methods. The microinjection of latex or lissamine green is performed into the blood vessels and nephrons. In one kidney 85-95 nephrons are counted, their number is not the same along the kidney length and increases in the caudal direction. There are nephrons of the ventral, intrarenal and medial populations. The length of the former is 2.7 times as great as that of the latter. A relative length of the nephron segments changes slightly. In all the ventral nephrons a nephrostome is detected. A specific peculiarity of the newt nephron that differs it from that in other vertebrates is the presence of a long distal segment, heterogeneous by its structure. Superficial canaliculi of the kidney are strictly oriented: medially to the renal corpuscles there are loops of the first part of the distal segment, they are vascularized out of the efferent veins system; laterally to the renal corpuscles the loops of the proximal, connective and second part of the distal segments are localized; they receive their blood from some branches of the afferent vein.
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