title: Buffering substances of human semen.
abstract: The quantitative contribution of several components to the BC of human semen has been investigated. The role of spermatozoa is negligible (less than 2%). Both the high-molecular components (proteins) and the HCO3-/CO2 system contribute about 25% to the BC. Therefore, about 50% of the BC of semen must be due to low molecular weight components other than HCO3-/CO2.
mesh_terms: D001639:Bicarbonates / Q000032:analysis; D002021:Buffers; D002245:Carbon Dioxide / Q000032:analysis; D006801:Humans; D008297:Male; D011506:Proteins / Q000032:analysis; D012661:Semen / Q000032:analysis*; D013094:Spermatozoa / Q000032:analysis
chemical_list: D001639:Bicarbonates; D002021:Buffers; D011506:Proteins; D002245:Carbon Dioxide