Fertilization or fusion of the male and female gametes takes place in the fallopian tubes, which are a part of the female reproductive system. Thus, in humans, fertilization takes place in the human female.

As the fertilization is taking place inside the female body, it is not external fertilization.

Testis is a part of the male reproductive system which has a role in the production of sperms, not fertilization.

During fertilization, the sperm moves towards the egg, because it has a tail and several mitochondria to facilitate this action.