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THE KIDNEY/ NEPHRON

QuestionAnswer
What is the role of the kidney? The kidney excretes waste, maintains water and electrolyte levels in the body and also controls blood pressure.
What is the functional unit of the kidney? The Nephron.
What is the role of the Glomerulus? It filtrates the blood. Large cells and proteins, as well as red bloods cells are retained in the blood, but other materials, such as sodium, glucose and amino acids, passes through the Bowman's capsule.
What is the role of the Proximal Convoluted Tubule? A tubule that actively reabsorbs products from the Bowman's capsule back into the blood that are not necessarily 'waste' products (i.e. glucose, sodium and water)
What is the role of the Loop of Henle? Crosses the renal medulla from the renal cortex to make the medulla salty (hypertonic) by actively pumping out salts through the descending loop. Osmosis balances out the salt concentration with that of the L.O.H, the main part of water reabsorption.
What is the role of the Distal Convoluted Tubule? The reabsorption of water continues to take place.
Role of Collecting Ducts in the Nephron: Collects all the by products of the nephron. The collecting duct again crosses the renal cortex into the renal medulla where the hormones ADH and Aldosterone determine how porous the wall of the collecting duct is for continued water reabsorption.
Created by: mnb
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