Images Dated 4th March 1998
Available as Framed Photos, Photos, Wall Art and Gift Items
Choose from 19 pictures in our Images Dated 4th March 1998 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.
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Featured 4 Mar 1998 Print
Artwork of human fertilisation and implantation
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 4.5 days it is a blastocyst (hollow ball of cells) that enters the womb; at day 6 it im- plants on the womb, the thickened region forming the embryo and the placenta which will nourish it
© DAVID GIFFORD/SCIENCE PHOTO LIBRARY
