Pronephros Kidney Explain
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Pronephros : Itoriginates from the anterior part of the nephrotome. It is also termed head kidney due to its anterior position. There are only 3 pronephrine tubule (nephron) in frog embryo, 7 in human embryo, and about 12 in chick embryo which are segmentary arranged. Nephrostome present, glomerulus is external and unite to form glomus in some cases. Duct is pronephric duct or mullerian duct. A pair of pronephros appear in all vertebrate embryos but they becomes functions kidneys in adult myxine and embryos of all anamniotes (fish, amphibian). This kidney found as transitory kidney in all vertebrates embryos.
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