Has to do with Sodium control, as well as blood vessel constrictions and blood volume.
2007-03-26 15:54:56 · 4 answers · asked by Turtle 1 in Science & Mathematics ➔ Biology
Having just had a series of renal lectures it is not to my knowledge that kidneys exclusively regulate blood pressure. That said they can regulate how much blood enters them as the kidney are encased in what is essentially a tough skin and a surge of blood would blow your glomeruli to pieces. Renin is excreted to contract the arteriole entering the kidney or contract the arteriole just after, each has different effects but this would alter absorbtion rate more than anything else.
Sorry, Hope that helps a little
:)
2007-03-26 19:49:45 · answer #1 · answered by Eighth Deadly Sin 2 · 0⤊ 0⤋
1
2016-09-21 23:16:48 · answer #2 · answered by Tommie 3 · 0⤊ 0⤋
Big question.
Kidneys control the about of salts (Importantly, Na+, Cl- and K+
) and water that is in your blood. When the kidneys (specifically the juxtaglomerular appartatus) senses decreased blood pressure (BP) it releases renin. Renin makes angiotensin II, a compound which does numerous things
-Increases sympathetic (adrenaline like) nervous system activity, which rapidly increases BP
-Increases the resorption of Na+ and Cl-
-Increases the resorption of H2O
-Causes vasocontriction
-Causes the release of antidiuretic hormone, which further enhances H2O resorption.
The opposite happens when BP goes up.
2007-03-26 16:19:48 · answer #3 · answered by Bill C 3 · 1⤊ 0⤋
One thing is that the kidneys control volume of water in the system. " thoroughly describe " sounds like homework, to me.
2007-03-26 15:59:40 · answer #4 · answered by Anonymous · 0⤊ 0⤋