Excretory System. Adam, Amy, Karl, Karlene , and Yifan. Introduction. http://www.youtube.com/watch?v= guOqyi5lUQQ (1:46-4:36) Regulates bodily fluids, excreting and recycling waste Main organs: kidneys, ureters, bladder and urethra Disorders of the excretory syste m. Excretion.
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Adam, Amy, Karl, Karlene, and Yifan
Medulla is salty
Increases osmolarity for future filtrate
Reabsorption of water causes salt concentration to decrease
ATP is used to actively reabsorb sodium ions
Maintaining Blood pH in the Excretory System
Maintenance of Water-Salt Balance
Carter-Edwards, T., Gerards, S., Gibbons, K., McCallum, S., Noble, R., Parrington, J.,...Whyte-Smith, A. (2011). Biology 12. Canada, McGraw-Hill Ryerson, pp.444-462.