What 2 ions are most common in both blood plasma & interstitial fluid?

We know that when substance donate the electron then it from positive charge but when substance take electron then it form negative charge .

The most common ions in blood plasma

1.Cation  -Sodium(Na+)

2.Anion   -Chloride(Cl-)

The most common ions interstitial fluid

1.Cation  -Potassium

2.Anion   - Chloride

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.