Human Fallopian tubal fluid show a unique elemental composition of high concentrations of K and Cl, but lower concentrations of Ca, relative to the normal range of serum values. Na and Mg concentrations are similar to Human serum levels.
oviductal fluid is rich in K+ and HCO3 – in comparison with plasma. The oncentrations of nutrients also differ from those in plasma The amino acids present in the highest concentrations are arginine, alanine and glutamate in human.