Q1. Explain with help of a diagram fluid exchange across the capillary wall. Explain RAAS (Renin Angiotensin Aldosterone System).
- (a)) Explain with help of a diagram fluid exchange across the capillary wall. (200 words)
- (b)) Explain RAAS (Renin Angiotensin Aldosterone System). (200 words)
- Capillary fluid exchange is driven by Starling's forces: hydrostatic pressure (out) and oncotic pressure (in).
- Filtration occurs at the arterial end where hydrostatic pressure exceeds oncotic pressure.
- Reabsorption occurs at the venous end where oncotic pressure exceeds hydrostatic pressure.
- RAAS regulates blood pressure and fluid balance, initiated by low blood pressure or volume.
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