reproductive system concept

abnormal analysis anatomy asthenozoospermia azoospermia baby cell chromosome cryptozoospermia defect diagram donor embryology fertile fertilisation fertility fertilization flat genetic healthy human infertility insemination ivf male mammalian medical normal normozoospermia nucleus oligozoospermia parameter poster pregnancy reproduction reproductive scientific semen sex sexual sperm spermatozoa spermatozoon spermogram structure system teratozoospermia treatment vector