Sperm production,light micrograph

Bildnummer 11647326
Sperm production,light micrograph
Sperm production. Light micrograph of a section through the epithelium of a seminiferous tubule from a guinea pig testis (testicle),showing the stratification of developing germ cells (sperm). This is the site of sperm maturation and development (spermatogenesis). A spermatogonium can be seen on the basal lamina (centre). These are the germline stem cells for the continuous production of new germ cells. Above are primary spermatocytes (pale). Next is a layer of round spermatids and various elongated spermatids,showing condensed nuclei and extended cytoplasm,in which the sperm tails (flagellae) will form. In this species a spermatogonium requires 5 weeks to become a fully-formed spermatid that is released from the epithelium. In man this same process takes approximately 10 weeks. Magnification: x570 when printed at 10 centimetres wide
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Microscape
Bildgröße: 5102 px × 3440 px
Modell-Rechte: nicht erforderlich
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