Fertilisation and implantation. Artwork of the first week of human life, from egg fertilisation to embryo implantation in the uterus (womb). At lower

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Fertilisation and implantation. Artwork of the first week of human life, from egg fertilisation to embryo implantation in the uterus (womb). At lower left the ovary (white) releases a round egg into the fallopian tube (pink). Sperm reaches the egg & fertilises it 12-24 hours after egg release. The egg divides (upper left) into a two-celled embryo after 30 hours; at 3 days the embryo (called a morula) is 16 cells (top centre); at 4 days the advanced morula (centre right) nears the womb. At days it is a blastocyst (hollow ball of cells) that enters the womb; at day 6 it implants on the womb, the thickened region forming the embryo and the placenta which will nourish it.

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Size: 3664px × 2480px
Photo credit: © DAVID GIFFORD/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: art, artwork, body, development, early, embryo, fallopian, fertilisation, human, implantation, morula, ovum, tube