when there is a slight increase in systemic blood pressure, the resulting stretch of afferent arterioles in the kidneys results in reflexive of arterioles, which helps keep gfr within a normal range.

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16-12-2022
Biology

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when there is a slight increase in systemic blood pressure, the resulting stretch of afferent arterioles in the kidneys results in reflexive of arterioles, which helps keep gfr within a normal range.

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kumarravichandra kumarravichandra · Answer 1 · 2022-12-20T01:58:50-05:00

vasoconstriction of afferent arterioles to keep GFR normal

The kidneys perform a wide range of essential functions for good health. They also maintain fluid and electrolyte balance, support bone integrity, and eliminate metabolic waste. To keep hemodynamic stability, these two bean-shaped organs communicate with the cardiovascular system.

The renin-angiotensin-aldosterone system, or RAAS, plays a crucial role in the interaction between RBF and healthy renal function. Juxtaglomerular cells produce renin in response to reduced renal artery pressure, increased beta-1 adrenergic receptor-mediated renal sympathetic activity, or reduced salt transport to macula densa cells. [1] Angiotensinogen, which is produced in the liver, is changed into angiotensin I by renin. Angiotensin I is changed into angiotensin II by the lung-produced angiotensin-converting enzyme (ACE). Angiotensin II performs a variety of functions. It causes vasoconstriction and raises blood pressure by acting on angiotensin II receptors.hemodynamic When RBF is low, it also preferentially constricts efferent arterioles to boost filtration.

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