Describe features controling fluid filtration accross capillaries????

There are several features that control fluid filtration across capillaries:

1. Capillary hydrostatic pressure: This is the pressure exerted by the fluid within the capillaries. It tends to push fluid out of the capillaries and into the surrounding tissues.

2. Interstitial fluid hydrostatic pressure: This is the pressure exerted by the fluid in the interstitial spaces surrounding the capillaries. It opposes the movement of fluid out of the capillaries.

3. Capillary oncotic pressure: This is the osmotic pressure exerted by proteins in the blood plasma. It tends to draw fluid back into the capillaries.

4. Interstitial fluid oncotic pressure: This is the osmotic pressure exerted by proteins in the interstitial fluid. It opposes the movement of fluid into the capillaries.

5. Capillary permeability: The permeability of the capillary walls determines how easily fluid can pass through them. Capillaries with higher permeability allow more fluid to filter out.

6. Lymphatic drainage: The lymphatic system helps to remove excess fluid from the interstitial spaces and return it to the bloodstream. It plays a crucial role in maintaining fluid balance.

These features work together to regulate the filtration of fluid across capillaries, ensuring that the balance between fluid movement into and out of the capillaries is maintained.