Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.

Synonyms: X-Chromosome-Bearing Sperm, Sperm, Y-Bearing, Sperm, Y-Chromosome-Bearing, Spermatozoa, Y Chromosome Bearing Sperm, Sperms, X-Chromosome-Bearing, X-Bearing Sperm, Y-Bearing Sperms, Sperm, Sperm, X-Chromosome-Bearing, Y-Bearing Sperm, Sperms, Y-Chromosome-Bearing, X Chromosome Bearing Sperm, Y-Chromosome-Bearing Sperms, Spermatozoon, X-Bearing Sperms, Y Bearing Sperm, Y-Chromosome-Bearing Sperm, Sperms, Y-Bearing, X Bearing Sperm, Sperm, X-Bearing, Sperms, X-Bearing, X-Chromosome-Bearing Sperms