Pressures (Oncotic & Hydrostatic)
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Capillary oncotic pressure
attracts water from interstitial space into the capillary via osmosis
Net filtration
difference between oncotic and hydrostatic pressures at the vascular bed, same as Starling's forces
Oncotic pressure (blood pressure)
facilitates movement of water from intravascular space to the interstitial space
Hydrostatic pressure
facilitates the movement of water from interstitial space into capillaries
Interstitial (if speaking about the tissues) oncotic pressure
osmotically attracts water from the capillary into the interstitial space