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

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

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

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

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%

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%

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%