| A | B |
| Natriuretic Factor | hormone released by cardiac atria |
| Anion | carries a negative charge |
| Electroyte | dissociates in solution |
| Osmolality | measure of total solute concentration per liter of solution |
| Solvent | substance that can dissolve in solution |
| Valence | combining power of an ion |
| Diffusion | movement of molecultes from area of high to area of low concentration |
| Hydrostatic Pressure | force within a fluid compartment |
| Buffer | changes strong acids to weak acids |
| Hypertonic | Raises the osmolality of ECF |