BIOS 240 Lecture Notes - Lecture 11: Countercurrent Multiplication, Diuretic, Land Of Oz

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Kidneys-responsible for getting rid of waste products from body. 1 way- urine way to reg how much water you use, also from solutes that need to remove from blood. Need to hang on to gluc in body, to generate atp. Function: constantly decide what to excrete and what to put back in blood stream. We lose a lot of water to envt. Need to retain as much as possible to maintain osmolarity of blood within a small range. So your kidneys constantly check out whether or not need to expel a lot of water so blood doesn"t become to dilute. If dehydrated, kidneys need to reclaim as much water as possible. Desert rodent example: live in very arid conditions. Kangaroo rate here can exceed 20x concentrated urine. 1. ) consist of tutbular elemnts called methons in mammalian syst. 2. ) solutes get to collecting duct- uretha bladder definitive urine forming then excreted.