Human Reproductive System Flashcards
Zygote
Egg and sperm fuse to form a single cell
Embryo
Division of the zygote occurs and it grows.Attaches to the lining of the uterus(implantation)
Foetus
After 8 weeks looks like a human
Implantation
Occurs when the fertilised egg lodges itself on the lining of the uterus
Ovulation
The release of an egg from an ovary on day 14 of the monthly cycle
Puberty
When hormones cause changes in the body to make it sexually mature
Menstruation
The shedding of the lining of the uterus
Fertile period
The time in the menstrual cycle when pregnancy is mostly to occur
Family planning
To control the number of children you have,you need to control the number of times fertilisation takes place.
Natural methods of contraception
Aim to detect the day ovulation takes place,avoid intercourse during fertile period.
Artificial methods of contraception
Prevent the sperm ,egg meeting
E.g.condom which prevents sperm entering the vagina
E.g. Contraceptive pill which prevents ovulation
It is important to realise no method 100% reliable,to abstain from sex to not have sexual intercourse is the only way to avoid pregnancy.
Fertilisation
The fusing of the gametes to form a zygote