AH1 Ex1 Ch. 17 Fluid/Elec

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AH1 Ex1 Ch. 17 Fluid/Elec
2010-05-16 14:48:04
Fluid Elec

Fluid/Elec Definitions
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  1. Acidosis
    Process that adds acid or elminates base from body fluids
  2. Active Transport
    Process in which molecules move across a membrane againsta concentration gradient
  3. Alkalosis
    Process that adds base or eliminates acide from body fluids
  4. Anions
    Negatively charged ions
  5. Buffer
    A substance that acts chemically to change strong acids into weaker acids or to bind acids to neutralize their effect
  6. Cations
    Positively charged ions
  7. Diffusion
    The process in which particles in a fluid move from an area of higher concentration to an area of lower concentration
  8. Electrolyte
    An element or compound that, when melted or dissolved in water or another solvent, dissociates into ions and is able to conduct an electric current
  9. Facilitated Diffusion
    The movement of molecules from an area of high concentration to one of low concentration at an accelerated rate with the assistance of a specific carrier molecule
  10. Fluid Spacing
    The distribution of water in the body
  11. Homeostasis
    The state of equilibrium in the internal environment of the body, naturally maintained by adaptive responses that promote healthy survival
  12. Hydrostatic Pressure
    The force that fluid exerts within a compartment
  13. Hypertonic
    Solutions that increase the degree of ostotic pressure on semipermeable membrane; more solutes in solution
  14. Hypotonic
    Solutions that have a lower concentration of solute than another solution thus exerting less osmotic pressure on a semipermiable membrane
  15. Oncotic Pressure
    The osmotic pressure of a colloid in solution, such as when there is a higher concentration of a protein in the plasma on one side of a cell membrane than in neighboring intersitial fluid
  16. Osmolarity
    The measue of the osmotic force of solute per unit of weight of solvent (mOsm/kg or mmol/kg)
  17. Osmosis
    The movement of water between two compartments separated by a membrane permeable to water but not to a solute
  18. Osmotic Pressure
    Amount of pressure required to stop the osmotic flow of water
  19. pH
    abbreviation for potential hydrogen, a scale representing the relative acidity (or alkalinity) of a solution, in which a value of 7.0 is neutral, below 7.0 is acid, and above 7.0 is alkaline
  20. Tetany
    Increased nerve excitability and sustained muscle contraction that results from low calcium levels that allow sodium to move into excitable cells, increasing depolarization; low calcium levels affect the membrane potential
  21. Valence
    The electrical charge of an ion that is numberic expression of the capability of an element to combine chemically with other elements