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generally there are special receptors to identify changes in blood pressure.there are osmo receptors and baro receptors present in blood vessels.these sense the changes in blood volume and pressure and pass on information to special centres .
when venous blood flow passes through kidneys these sense the changes in blood volume and pressure.when there is change in blood volume or pressure they release special substance called "RENIN".this renin is released special" JUXTRA GLOMERULAR APPARATUS".
juxtra glomerular apparatus;it includes 3 imp areas.
in afferent arteriole cells called JUXTRA GLOMERULAR CELLS
proximal portion of distal convoluted tubule contains MACULA DENSA.
cells called POLIKISSEN CELLS OR LACIS CELLS.
Renin acts on its substate called angiotensinogen[which is a protein synthesized by liver].then it forms angiotensin1.this reacts with enzyme called angiotensinogen converting factor and forms angiotensin2.this acts on adrenal gland and this release aldosteron which acts on renal tubules and absorb Na+ and also release antidiuretic harmone which absorbs water in renal tubules and effects blood volume and blood pressure.this is sensed by baroreceptors and these send information to higher centres and these higher centers present in medulla send impulses to heart and blood vessels to dilate or contract .thus as a result due to dilation blood pressure decreases or due to contraction bp increases.due to absorption of water blood volume increases or decreases.
THUS KIDNEYS EITHER DIRECTLY AND INDIRECTLY ACT ON HEART TO INFLUENCE BLOOD BP AND VOLUME.
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What do kidney regulate in the blood?
They help regulate blood pressure (I think)
What Kidney structures that help to regulate blood pressure?
The glomerulus ...
Explain how antidiuretic hormone can help regulate hypotension Be specific?
it can help by increasing reabsorption of water by the kidney. With the reabsorption, blood plasma volume increases, thus raising blood pressure
What organs maintain blood pressure?
From eurekalert:When blood pressure increases the kidneys respond by extracting extra water and salts into the urine, causing blood volume -- and hence pressure -- to fall. But special nerve pathways mean the brain can also regulate urine production and hence influence blood pressure.So, no one organ regulates blood pressure.
what hormone promotes sodium ion by the kidney in order to increase blood pressure and blood volume?
Aldesterone
How does kidney help regulate blood pressure?
Angiotensin receptors and regulation of fluid balance in the body along with sodium retention.
Does kidney regulate PH of the blood?
Yes it does.
What do the baroreceptors regulate?
They regulate blood pressure.
How does the kidney regulate blood volume?
The kidneys regulate electrolytes, Ph balance (acid base balance) and blood pressure. The kidneys also filter waste from blood which is excreted in urine. The kidney also produces hormones that aid in the absorption of calcium and production of red blood cells.
How does juxtaglomerular apparatus help regulate blood pressure and filtration rate?
The apparatus is a microscopic structure in the kidney, the specific location of it helps to regulate the renal blood flow and filtration rate. It is regulated by secreting renin which activates the
In human the organ the most directly regulates the concentration of the water in the blood?
the kidney's most directly regulate the concentration of water in blood.
What are the functions of the kidney?
eliminates waste from the bodyfunction of the kidney : The kidneys remove wastes and water from the blood to form urine. Urine flows from the kidneys to the bladder through the ureters.the main function unit of the kidney is the nephron The kidneys regulate the body's fluid volume, mineral composition and acidity by excreting and reabsorbing water and inorganic electrolytes. ( http://www.americanheart.org/presenter.jhtml?identifier=4647 )to filter out the things that your body doesn't need
