Human Reproduction And Genetics Flashcards
The Fallopian
A tube that carries the egg to the uterus, fertilisation occurs here
Ovaries
Store and release eggs
The uterus (womb)
Is where the fertilised egg becomes implanted and finds nourishment
The cervix
This leads from the vagina to the uterus
The vagina
Holds the male penis durning sexual intercourse, forms the birth canal durning childbirth
Gamete
Is a Sex cell
Male gamete
Is sperm
Female gamete
Is the egg
Ovulation
An egg is released from the ovary an average of every 28 days
The fertile period
These are days of the menstrual cycle when the woman is most likely to become pregnant (supreme can live in the female)
Testes
Produce sperm
Sperm duct
Brings the sperm from the testes to the penis
Glands and vesicles
Produces seminal fluid which mixes with sperm to form semen (allows sperm to swim)
Penis
Enters the female and ejaculates semen
Puberty
Describes when the body starts becoming sexually mature (normally happens between the ages of 10 and 15)
Puberty in males
Sex hormones (testosterone) are released causing the voice to deepen, hair grows around the sex organs, face, chest and underarms, the testes and penis grows bigger and start to produce sperm.
Puberty in females
Sex hormones (oestrogen and progesterone) are released the breasts develop, hips widen, and hair begins to grow on the body
Copulation
Is another name for sexual intercourse
Implantation
Occurs when the fertilised egg lodges itself on the lining of the uterus
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
Pregnancy
The average length of human pregnancy is 40 weeks
Amniotic fluid
This fluid provides a cushion for the embryo
This bursts during delivery of the baby “waters breaking”