KS3 7B Reproduction
Definitions
1 Cervix The opening to the vagina. 16 Fertilisation The fusing of a sperm and egg cell.
2 Uterus The organ where a foetus develops. Also 17 Ovulation The release of an egg (ovum) from the ovary. This
called a womb. happens at day 14 of the menstrual cycle.
3 Vagina The opening to the female reproductive 18 Gestation The period of time it takes for an embryo to develop.
system. In humans, this is 9 months.
4 Oviduct The tubes that egg cells travel down.
Also called a fallopian tube.
5 Ovary The place where egg cells are stored. 19 Placenta Joins to the foetus by the umbilical cord. The mother's
blood does not mix with the blood of the foetus, but
the placenta lets oxygen and nutrients pass between
the two blood supplies.
6 Urethra The tube that urine travels from the 20 Contractions Muscles tighten and relax to push the baby out of the
bladder to the outside. uterus and vagina during labour.
7 Penis The male reproductive and excretory 21 Contraception Chemical or physical barriers to prevent pregnancy.
organ. E.g condoms, contraceptive pill.
8 Scrotum The sac that contains the testicles. 22 IVF In- vitro fertilisation. Egg is fertilised outside the
uterus when couples cannot conceive naturally.
9 Testes Where sperm cells are made.
1 Sperm Where the sperm cells are added to the
0 duct semen.
1 Menstrual The monthly cycle of changes in the
1 cycle ovaries and the lining of the uterus
starting with ovulation.
1 Puberty The lifecycle stage where fertility and
2 sexual characteristics develop.
1 Semen The liquid in which sperm cells are added
3 to.
1 Sperm The male sex cell. Also called a male
4 gamete.
1 Egg The female sex cell. Also called a female Diagram 1: Male reproductive system Diagram 2: Female reproductive
5 gamete. system
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This document is for internal-use
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