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Kidney

For discussing the functions of different structures of all organisms.

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Kidney

Postby raghda » Tue Sep 11, 2007 11:38 pm

Hi !


If anyone know the role of the Kidney in regulation of arterial blood pressure ? Thanks in advance .
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Postby MrMistery » Thu Sep 13, 2007 5:53 am

well the kidney regulates the volume of blood in the organism by eliminating more/less water. more water=> higher pressure. less water=> lower pressure
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Postby Shajjn » Sun Oct 21, 2007 3:43 pm

Kidney is behind the renin-angiotensin system, which impact on blood pressure in the long-run.

Kidney release renin after drop in systemic blood pressure. Renin converts angiotensinogen to angiotension II which affect systemic arterioles to constrict, increasing the peripheral resistence, thus a increase of blood pressure back to normal.
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Postby mcar » Sat Nov 17, 2007 12:57 pm

Review the system. Relate the hormones.
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Hello friends

Postby ahm_k1 » Fri Mar 21, 2008 2:02 pm

let me add sth. to your awsome comments : first the kidney mainatain arterial blood pressure in three mechanisms *neuronal like the sympathetic discharge through different mechanisms through an effect mainly on the afferent arteriole entering the glomerular capsule mainly *hormonal through many different hormones secreted from adrenal medulla and zona glomerulosa in the adrenal cortex and affect mainly efferent areriole and is accompanied by Na and K retension , Also ADH from supra optic and paraventricular nuclei in the hypotalamus *others like in human increasing thirst mechanisms and in other animal increase salt appetit
If u wanna more details in case u r in interest we can discuss this in details just ask .
:)
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Postby MrMistery » Wed Mar 26, 2008 6:11 pm

ahm_k1, your contribution to the forum is appreciated, but please write whole words and avoid abbreviations as much as possible. Many of our users are not native English speakers.
Thank you.
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