This colorful anatomical chart illustrates the human female menstrual cycle and ovum implantation. The development of a fetus starts with the fertilization of the female ovum by the male spermatozoon. After this fusion of cells occurs the ovum travels up the fallopian tube to implant within the uterus, where is will remain attached until birth. The anatomy chart colorfully illustrates this along with the changing thickness of the uterus wall throughout the menstrual cycle. The menstrual cycle and ovum implantation poster is delivered with wooden rods for easy display in a classroom or doctor's office.