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. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source / David M. Phillips |
Bildgröße: | 4083 px × 2868 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |