Human Development Flashcards
Biology Topic 1
Adolesence
A person going through puberty
Afterbirth
The birth of the placenta after the baby is born
Allele
Alternative form of a gene
Amniotic Sac
The place where the foetus is protected
Amniotic Fluid
Fluid that surrounds the developing embryo
Chromosone
Long strand of DNA
DNA {Deoxyribonucleic Acid]
The chemical that contains genetic code for each individual
Ejaculation
The release of sperm through the penis
Embryo
The early stages of development in a new organism
Errection
The stiffening of the penis where a man is sexually aroused
Fertilisation
The joining or fuse of the male and female gametes
Foetus
The name of a developing baby 2 months after fertilisation
Gene
Small sections of DNA that control a specific characteristic
Gamete
Sex Cell
Inheritance
Gaining a few characteristics from both of your parents
Intercourse
The act of having sex
Menstrual Cycle
A series of events lasting 28 days in the women’s reproductive system
Menstruation
When a small amount of the uterus lining and some blood pass out the vagina
Mutation
Change in genetic code
Ovulation
The release of egg cells from the ovaries
Ovum
Women’s gamete Egg Cell
Punnett Square
Allows you to find out whether the foetus is a girl or boy
Placenta
An organ inside the uterus that allows the foetus to connect to its mother
Puberty
When physical changes happen inside the body for people around the ages 11-15
Sperm
Male’s Gametes Sperm Cell
Semen
A mixture or fluids and sperm cells released by men during sexual activity
Sperm Duct
Tube that carries the sperm from the testes to the urethra
Umbilical Cord
Cord that carries food,waste and oxygen between the placenta
Zygote
Fertilised Cells formed
