Excretory System Stage 2
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“Development of excretory system of vertebrate. The pronephros is completely separated off from the primitive segment and lateral plate.n.c., nerve cord; nch., notochord; pn., pronephros; g., gut; p.s., primitive segment; mes., mesonephric tubule; pn.d., pronephric duct; b.c., body cavity; ao., aorta; siv., sub-intestinal vein, with vessel to the aorta.” -Thomson, 1916
Keywords
aorta, Notochord, excretory system, primitive excretory system, vertebrate excretory, nerve cord, pronephros, primitive segment, mesonephric tubule, pronephric duct, body cavity, sub-intestinal veinGalleries
Comparative AnatomySource
J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)
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