By Michelle Andrews. + More. This week's report linking higher blood sugar levels with lower brain function in people with type 2 diabetes probably sent many people to their computers to research ways to reduce their A1C levels, a measurement of average blood sugar over time.
Making the world better, one answer at a time. Anion means the ion has a negative charge. The most common extracellular anion in the human body is chlorine. Most common cations are sodium, potassium, and calcium.
Potassium is the major cation (positive ion) inside animal cells, while sodium is the major cation outside animal cells. The difference between the concentrations of these charged particles causes a difference in electric potential between the inside and outside of cells, known as the membrane potential.