In order for the conventional IVF process to take place, each culture medium drop contains an egg and millions of sperm cells. The ultimate goal is that at least one sperm cell is able to penetrate the egg coat (zona pellucida) and fertilize it.
IVF petri dish with eggs and sperm
By Aitziber Domingo Bilbao BSc, MSc (embryologist), Ana Mª Villaquirán Villalba MD, MSc (gynecologist), Andrea Rodrigo BSc, MSc (embryologist), Mark P. Trolice MD, FACOG, FACS, FACE (reproductive endocrinologist), Víctor Montalvo Pallés BSc, MSc (embryologist) and Sandra Fernández BA, MA (fertility counselor).
Last Update: 10/25/2018