Kidney

[raghda]

Hi !


If anyone know the role of the Kidney in regulation of arterial blood pressure ? Thanks in advance .

[MrMistery]

well the kidney regulates the volume of blood in the organism by eliminating more/less water. more water=> higher pressure. less water=> lower pressure

[Shajjn]

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.

[mcar]

Review the system. Relate the hormones.

[ahm_k1]

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 .

[MrMistery]

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.