Thursday, February 25, 2010

This is where you are formed

This is where you are formed:


Human Egg with Coronal Cells
This image is of a purple, colour-enhanced human egg sitting on a pin. The egg is coated with the zona pellicuda, a glycoprotein that protects the egg but also helps to trap and bind sperm. Two coronal cells are attached to the zona pellicuda.


Sperm on the Surface of a Human Egg
Here's a close-up of a number of sperm trying to fertilize an egg.


Human Embryo and Sperm

It looks like the world at war, but it is actually five days after the fertilisation of an egg, with some remaining sperm cells still sticking around. This fluorescent image was captured using a confocal microscope. The embryo and sperm cell nuclei are stained purple while sperm tails are green. The blue areas are gap junctions, which form connections between the cells.


Coloured Image of a 6 day old Human Embryo Implanting

by Margaret Lim ~

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