Ion Concentration

Na+ Outside of Cell

142 mMol

Na+ Inside of Cell

15 mMol

K+ Outside of Cell

4.4 mMol

K+ Inside of Cell

120 mMol

Ca2+ Outside of Cell

1.2 mMol

Ca2+ Inside of Cell

100 nM

Is Na+ more abundant outside or inside the cell

Outside

Is K+ more abundant outside or inside the cell

Inside

Mg2+ Outside the Cell

0.6 mMol

Mg2+ Inside the Cell

1 mMol

Cl- Outside the Cell

102 mMol

Cl- Inside the Cell

16 mMol

HCO3- Outside the Cell

22 mMol

HCO3- Inside the Cell

16 mMol

A- Outside the Cell

7 mMol

A- Inside the Cell

117 mMol

What is A-

Impermeant Organic Anions

pH Outside the Cell

7.4

pH inside the cell

7.2

Is the inside of a cell more or less acidic than outside of the cell

More acidic

Osmolarity outside of cell

290

Osmolarity inside of the cell

290 mOsm

What is true about osmolarity outside and inside the cell

It must be equal to maintain homeostasis