Renin-angiotensin pathway controls - (a) Ultrafiltration (b) Blood pressure (c) Glucose reabsorption (d) Cardia output Please I want instant answer. Also explain that if A is answer why not B and if B why not A?

Question

Answer

Ultrafiltration and blood pressure are related bcz if bp increases ultrafiltration also increases
renin angiotensin pathway constrict renal vessels which increases bp and automatically ultrafiltration so correct option is B

Answer

Renin-angiotensin pathway controls

Blood pressure

Renin-angiotensin pathway primarily controls blood pressure regulation in the body.

Explanation:

The renin-angiotensin pathway is a hormonal cascade that plays a crucial role in regulating blood pressure. When blood pressure drops or blood volume decreases, the kidneys release an enzyme called renin into the bloodstream. Renin acts on a protein called angiotensinogen, converting it into angiotensin I. Angiotensin I is then converted into angiotensin II by an enzyme called angiotensin-converting enzyme (ACE).

Angiotensin II is a potent vasoconstrictor, meaning it causes blood vessels to constrict, leading to an increase in blood pressure. It also stimulates the release of aldosterone, a hormone that increases sodium and water retention in the kidneys, further contributing to an increase in blood volume and blood pressure.

While the renin-angiotensin pathway does have some impact on ultrafiltration in the kidneys and cardiac output, its primary function is to regulate blood pressure. Ultrafiltration is mainly controlled by the glomerular filtration rate (GFR) and tubular reabsorption mechanisms, while cardiac output is primarily regulated by factors such as heart rate and stroke volume. Therefore, although the renin-angiotensin pathway may have some indirect effects on these processes, its main role is in maintaining blood pressure homeostasis.

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