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Year 7 KO A2b

Knowledge Organiser Key term Autumn 2 Reproduction

TermDefinition
The period of time when a child changes into an adult. It involves emotional and physical changes.
Amniotic fluid Liquid that surrounds and protects the fetus (shock absorber).
Cilia Tiny hair on the surface of cells.
Condoms A barrier method of contraception that prevents semen being released into the vagina.
Contraception A method of preventing pregnancy.
Contraceptive pill A chemical method of contraception, which prevents ovulation.
Egg cells The female sex cell.
Ejaculation When semen is released from the penis.
Embryo A ball of cells that forms when the fertilised egg divides.
Fertilisation Joining of a nucleus from a male and female sex cell.
Fetus The developing baby during pregnancy (from 8 weeks after fertilisation).
Gametes (sex cells) The male gamete is a sperm and the female gamete is an egg. Join together to create a new organism.
Gestation Process where the baby develops during pregnancy.
Menstrual cycle/ period The monthly cycle during which the uterus lining thickens and breaks down.
Menstruation Loss of the lining of the uterus during the menstrual cycle.
Ovulation Release of an egg cell during the menstrual cycle.
Placenta The organ that allows transfer of nutrients and waste products between mother and fetus. It also acts as a barrier, stopping infections and harmful substances reaching the fetus.
Puberty The physical changes that take place during adolescence.
Reproductive system All the male and female organs involved in reproduction. The organ systems that produce sperm and egg, also where the fetus develops.
Sex hormones Hormones that are involved in the reproductive system (e.g. testosterone and oestrogen)
Sexual intercourse The process where the penis releases semen into the vagina.
Sperm cells Male sex cell containing male genetic material.
Umbilical cord Connects fetus to placenta.
Created by: Windypicks
 

 



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