Vas deferens is a thick-walled cord-like duct, it has a very narrow lumen. It is 30-45cm in length. Beginning: at the lower end of the tail of the epididymis. It ascends along the posterior...
The suitable female age for pregnancy ranges between 18 : 35 year, If the age decreases or exceeds that range, both the mother & embryo will be subjected to serious problems and the possibility...
Human belongs to the class Mammalia which is characterized by the development of the embryo inside the uterus till birth, So, their ova are small and nearly devoid of yolk (because the embryo depends...
The reproduction process The reproduction process is a process that aims to secure the existence and continuity of living organisms species and to prevent them from the extinction, The human reproduce sexually when two...
