Scanning electron micrograph (SEM) of spermatozoa on the surface of the uterine endometrium. The smooth contour of the long tapering tails gives no hint of their regional differentiation or of their complex internal organization. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source / David M. Phillips |
Taille de l’image : | 4083 px × 2868 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |