BIOL 222 Lecture Notes - Lecture 4: Vitreous Body, Peritoneal Fluid, Synovial Fluid
Document Summary
Osmolarity- concentration of solutes in a solution (ions) (h2o) Osmolarity is the same even though the composition is different. K+ imbalance in a cell in your toe vs. This one would affect the full system and full body so is more dangerous. A change in ecf it spreads quickly to all cells. **additions or deletions in ecf of either h2o or sale is immediately compensated by icf. Diffusion- movement of solutes of high concentration to low. So much in one area moves to a lower area. Solutes is what is being dealt with (particles) Osmosis- movement of water from high concentration to low. Same things as diffusion but is dealing with water. Antidiuretic hormone (adh) osmoreceptors in hypothalamus monitor osmotic concentration. Aldosterone stimulates na+ reabsorption in kidneys (increased thirst) *(look at chart in notes) filtration - urine reabsorption - blood. Cardiac muscle secretes when atria are stretched.
