The male and female reproductive systems have different functional structures. Hormones cause changes in the body during puberty.
Fertilisation is the fusion of the nucleus of a male gamete with the nucleus of a female gamete, producing a new cell called a zygote. This then matures into an embryo.
In humans, fertilisation happens inside the woman’s body. This is a process called internal fertilisation.
The human female reproductive system working during reproduction and fertilisation. The egg is released from the ovary and moves toward the oviduct.
The egg cell is released from the ovary into the oviduct. A sperm has been ejaculated into the vagina and is travelling up the cervix
The egg and sperm meet at the oviduct and the process of fertilisation begins.