1. higher hydrostatic pressure
Osmosis
Compartment A has
A lower concentration
Of NaCl, so it has a low
Osmotic pressure.
However it has more
water volume, so it has
higher hydrostatic pressure A:
5% NaCl B
15%
NaCl

2. Osmosis Compartment B has A higher concentration
of NaCl, so it has a stronger osmotic pressure.
Water from A will be pulled by B until the
NaCl is equilibrated A:
5% NaCl B
15%
NaCl

3. Osmosis As water leaves A to dilute B, the concentration of A
Rises and the concentration of B
Drops.
Once the osmotic pressures equilibrate, water movement will stop B
10%
NaCl A:
10% NaCl

4. Osmosis
If we add more water to B we will decrease the concentration and water will start to move into A because now has a higher concentration and more osmotic pressure B
10%
NaCl A:
10% NaCl

5. Application of osmotic pressure into the capillary bed
Hydrostatic pressure is 10 outside the capillary
Concentration is 15%
H20 leaves the capillary
Hydrostatic pressure is 10 inside the capillary
Concentration is 10%

6. Application of osmotic pressure into the capillary bed
Hydrostatic pressure is 12 outside the capillary
Concentration is 12%
H20 stops moving out of the cell due to osmotic pressures
But other water molecules move into the capillary because the
Hydrostatic pressure outside is now higher
Hydrostatic pressure is 8 inside the capillary
Concentration is 12%

7. Application of osmotic pressure into the capillary bed
Hydrostatic pressure is 11 outside the capillary
Concentration is 10%
As water moves back into the capillary, its hydrostatic pressure rises
which should push water back out, but because the concentration is higher
Water will keep getting pulled back until equilibration is reached
Hydrostatic pressure is 11 inside the capillary
Concentration is 11%