gisele_11
Human embryo exposing the embryonic cells
B0003392 Human embryo exposing the embryonic cells
Credit: Yorgos Nikas. Wellcome Images
images@wellcome.ac.uk
Scanning electron micrograph of a human embryo at day 4. The protein coat surrounding the egg (zona pellucida, gold) has been slit to expose the embryonic cells inside (red). These cells go on to form the embryo and can be harvested and cultured to give rise to embryonic stem (ES) cells. Microvilli are visible on the surface of the embryonic cells (blastomeres) and numerous sperm (blue) are still visible on the outside of the zona pellucida.
Scanning electron micrograph
1990 - 1999 Published: -
Copyrighted work available under Creative Commons by-nc-nd 2.0 UK, see images.wellcome.ac.uk/indexplus/page/Prices.html
Human embryo exposing the embryonic cells
B0003392 Human embryo exposing the embryonic cells
Credit: Yorgos Nikas. Wellcome Images
images@wellcome.ac.uk
Scanning electron micrograph of a human embryo at day 4. The protein coat surrounding the egg (zona pellucida, gold) has been slit to expose the embryonic cells inside (red). These cells go on to form the embryo and can be harvested and cultured to give rise to embryonic stem (ES) cells. Microvilli are visible on the surface of the embryonic cells (blastomeres) and numerous sperm (blue) are still visible on the outside of the zona pellucida.
Scanning electron micrograph
1990 - 1999 Published: -
Copyrighted work available under Creative Commons by-nc-nd 2.0 UK, see images.wellcome.ac.uk/indexplus/page/Prices.html