Mammalian Reproduction

Mammalian reproduction involves the union of two gametes (sperm and egg) to form a zygote that will develop into a new individual. The process is initiated by the male, who produces sperm cells in the testes and deposits them in the female’s reproductive tract. The sperm cells pass through the cervix and uterus to reach the site of fertilization, the oviducts. Here, one of the sperm cells will penetrate the egg and form a diploid zygote. The zygote will then divide, eventually forming a blastocyst which will implant itself into the endometrium of the uterus. After implantation, the blastocyst develops into an embryo and eventually a fetus, which is then born after a gestation period of nine months. The female’s reproductive organs play a crucial role in reproduction, producing hormones that regulate the process and providing a safe environment for the embryo to develop.