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...
Fertilization is the fusion of the male gamete (sperm) with the female gamete (ovum) to form the zygote which divides to form the embryo, The man may be considered infertile, if the number of...
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 placenta is an organ which connects the developing fetus to the uterine wall to allow the nutrient uptake , It provides thermo-regulation to the fetus , the waste elimination , and the gas...
