Human spermatid. Transmission electron micrograph (TEM) of a section through a human testis (testicle), showing a single round spermatid. Spermatids m
Human spermatid. Transmission electron micrograph (TEM) of a section through a human testis (testicle), showing a single round spermatid. Spermatids mature into spermatozoa (sperm cells). One pole of the nucleus is covered with the developing acrosome, a cap-like membranous organelle, within which are enzymes required for penetration of the egg during fertilization. Round spermatids transform by the process of spermiogenesis into elongated spermatids by condensation/reshaping of the nucleus (dark, centre), loss of most cytoplasm and development of a tail/flagellum. Magnification: x6,000, when printed 10 centimetres wide.
Size: 4740px × 3715px
Photo credit: © MICROSCAPE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: acrosome, biological, biology, black, black--white, cell, cells, cytological, cytology, developing, electron, envelope, germ, histological, histology, male, maturation, membrane, micrograph, microscope, monochrome, nuclear, nucleolus, nucleus, organelle, organelles, reproduction, reproductive, section, sectioned, single, sperm, spermatid, spermatogenesis, spermatozoa, spermiogenesis, stage, structure, system, tem, testicle, testicular, testis, tissue, transmission, white
