Physiology

Molarity

Concentration relative to the solute's molecular weight and total solution volume
Osmoles

Number of solute particles

e.g. 2.5 mmol CaCl2 = 3particles x 2.5 = 7.5 mosm CaCl2
Osmolarity

Solute particles/1L (temperature dependent)
Equivalents
- Used to refer to fluid and electrolyte homeostasis
- Relative to valance of ions
- 2.5 mM CaCl2 where Ca2+ and Cl- =
- 5mEq of Ca (2.5 x 2+)
- and
- 5mEq of Cl (2.5x2Cl-)
Isotonic

Normal osmolarity

Osmolarity same within and surrounding the compartment
Hypotonic
- Compartment has a lower concentration of solutes than its surroundings
- Water/solvent will flow out of compartment
- Cells will shrink
Hypertonic
- Cell has a greater solute conentration than what it's surrounded by
- Water will rush into the cell to balance osmolarity
- Cells will swell

Author

hellosleepy

167512

Card Set

Physiology

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Terms

Updated

2012-08-26T17:38:12Z

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