The concentration of some inorganic ions and organic compounds in the luminal fluid of the human ductus deferens.

The concentrations of some inorganic ions (sodium, potassium, chloride and phosphate) and organic compounds (carnitine, myo-inositol, glycerophosphocholine, phosphocholine and total phosphate) were estimated in the luminal fluid collected from sections of human ductus deferens removed at vasectomy. From the data presented it would appear that in contrast to non-primate species, in the human the inorganic ions contribute more to the total osmolarity of the luminal fluid than do the organic compounds.