Bull sperm. Coloured transmission electron micrograph (TEM) of bull sperm (spermatozoa). Sperm are the motile male sex cells. Each sperm is broadly divided into a pear-shaped head,neck and a long,thin tail. The head contains the genetic material of the male needed to fertilize the female egg (ovum). The head is joined to the tail by a short neck. The sperm's tail enables it to swim by whiplash movements,an action that propels it to reach the ovum. Magnification: x1,200 at 6x7cm size. x4000 at 8x10ins | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / MICROFIELD SCIENTIFIC LTD |
Bildgröße: | 3980 px × 4927 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |