PSL 310 Unit 1: Membrane Potential Concentrations (Numbers)

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Last updated 11:14 PM on 9/21/26
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8 Terms

1
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Concentration of ICF solute in relation to ISF and plasma

ICF values very different from ISF and plasma

2
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Concentration of plasma solute in relation to ISF

ISF and plasma solute levels are very similar

3
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Na+ (sodium)

10x more on outside (ISF/plasma) than inside (ICF)

4
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K+ (potassium)

30x more on inside (ICF) than outside (ISF/plasma)

5
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Ca2+ (calcium)

10,000x more on outside (ISF/plasma) than inside (ICF)

6
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Cl- (chloride)

6x more on outside (ISF/plasma) than inside (ICF)

7
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Osmolarity

Similar throughout but lower osmotic potential in plasma

8
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How does the higher osmolarity/lower osmotic potential of plasma contribute?

Constant flow of fluid from the interstitial fluid to the plasma, keeps blood pressure up, blood volume, albumin in blood supported