sperm cells reaching an ovum

in anaesthesiologist anaesthetic anatomy baby background care cell cells clinic clone collecting cycle cytoplasmic discovery dna doctor donor egg eggs embryo female fertility fertilization fertilized follicle follicles gene genetic hcg health healthcare hormone icsi illustration infertility injection inseminate inseminating insemination intra investigation ivf lab laboratory medical menstruation needle nurse operating operation ovarian ovary ovum patient people peritoneal physician pregnancy pregnant procedure reproduce reproducing reproduction reproductive research science sex sperm stimulation surgery surgical syringe test treat treatment tube ureter vitro white woman