Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000941
Antigens
Substances that are recognized by the immune system and induce an immune reaction.
Antigen
D012661
Semen
The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma.