Blood
摘要
Blood is composed of two major ingredients: the liquid blood plasma and several types of cells suspended within the plasma. Plasma is 89–95% water, with a variety of dissolved substances. The dissolved substances with small molecular weight include \({\mathrm {HCO}_3^-}\) HCO, \(\mathrm {Cl}^{-}\) , phosphorus, \(\mathrm {Na}^{+}\) , \(\mathrm {Ca}^{2+}\) , \(\mathrm {K}^{+}\) , magnesium, urea , and glucose .