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Medical Terminology
Fluids and Electrolyte Balance
| Term | Definition |
|---|---|
| Active Transport | Moves solutes against opposing force |
| Passive Transport | Movement of solvent and solute across a membrane |
| Tonicity | Concentration |
| Isotonic | Solute concentration = Osmotic pressure = |
| Hypotonic | Solute concentration stronger Osmotic pressure stronger |
| Hypertonic | Solute concentration weaker Osmotic pressure weaker |
| Sodium Potassium Ion Pump | |
| Diffusion | Movement of solutes(solids) |
| Osmosis | Movement of solvents(water) |
| Filtration | Movement of solvents and solutes |
| Solvent | Liquid which dissolves solutes |
| Solute | Substance dissolved in a solvent |
| Hydrostatic Pressure | Pushes |
| Osmotic Pressure | Pulls |
| Acid Base Balance | |
| Extracellular Fluid | Fluid stored outside the cell/most critical to regulate,1/3 of all body fluids Electrolyte |
| Intracellular Fluid | Fluid stored inside the cell,2/3 of all body fluid Electrolyte |
| Ion | |
| Cations | +charged protons/electrons |
| Anions | -charged electrons/protons |
| Overhydration | Fluid Volume Excess |
| Edema | General term for overhydration |
| Ascites | Excess fluid in peritoneal cavity |
| Hypervolemia | Excess fluid in the blood |
| Pulmonary Edema | Fluid in the lungs |
| Anascara | Uncontrolled systemic edema |
| RAA System | Renin,Angiotensin,Aldosterone |
| Intravascular Fluid | Inside of cell |
| Interstitial Fluid | In between cells |
| Euvolemic | Input=Output |
| Positive Feedback | Not homeostatic. Body intensifies 1st stimulus. Ex. Giving birth, blood clotting |
| Negative Feedback | Body reverses original stimulus to regain balance |
| Feedback Systems | Nervous system, Endocrine System |
| Electrolytes | Substances which dissolve in H2O. Carry electrical charge |
| Homeostasis |