BIOL 1030 Chapter Notes - Chapter 44: Malpighian Tubule System, Osmoregulation, Metabolic Waste

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Scott Kevin

Document Summary

10-3 m: the osmolarity of human blood is about 300 mosm/l, while seawater has an osmolarity of about 1,000 mosm/l. In animals with an open circulatory system, this fluid is hemolymph. Insects and other terrestrial arthropods have organs called. Concept 44. 4 nephrons and associated blood vessels are the functional units of the mammalian kidney: mammals have a pair of bean-shaped kidneys, each kidney is supplied with blood by a renal artery and drained by a renal vein. In contrast to the descending limb, the transport epithelium of the ascending limb of the loop of henle is permeable to salt, not water: as filtrate ascends the thin segment of the ascending limb, 9,300 mosm/l 25 times as concentrated as their body fluid. In a mammalian kidney, the cooperative action and precise arrangement of the loops of henle and the collecting ducts are largely responsible for the osmotic gradients that concentrate the urine.