Human egg cell. Coloured Scanning Electron Micro- graph (SEM) of a slice through a primary oocyte (egg cell) inside a maturing follicle from the ov- ary of a mature female. The oocyte (green) con- tains a central nucleus (yellow) and is surrounded by the granulosa cells (red) of the follicle. Be- tween the granulosa cells and the oocyte is the zona pellucida (blue),a thick layer of glycopro- tein,through which finger-like processes can be seen connecting the granulosa cells to the mem- brane of the oocyte. This picture shows one stage in the maturation of an egg cell during the ovar- ian cycle,before the cell's release from the ovary (ovulation). Magnification x75 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bagavandoss, P. |
Bildgröße: | 4974 px × 3607 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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