Sperm production site. Coloured scanning electron micrograph (SEM) of a freeze-fractured transverse section through a seminiferous tubule,the site of sperm production in the human testis. This tubule contains a swirl of the tails of forming sperm cells at its centre. The tubule is lined with a stratified epithelium containing two types of cell: Sertoli cells,which nourish developing sperm,and spermatogenic cells,from which the sperm cells form in a process known as spermatogenesis. After this,the sperm cells mature into their mobile form in a process known as spermiogenesis. Magnification: x400 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 3500 px × 3068 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |