![](http://4.bp.blogspot.com/_Uik4xNOnwkU/So00w4Gh0jI/AAAAAAAAAS0/jZG2XNHRlw4/s320/image012.jpg)
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.