Fertilisation and implantation Flashcards
What is the scientific term for reproductive cells (egg and sperm cells)?
Gametes
The male gametes are…
Sperm cells
The female gamete is the
Egg cell (Ovum)
When an egg and sperm cell join together, we call it…
fertilisation
The oviducts are lined with cells lined with small hair like structures called…
cilia
What is the function of the cilia that line the oviducts?
They waft the egg released by the ovary along to the uterus.
What happens during sexual intercourse?
The man’s penis fills with blood and becomes erect.
The woman’s vagina become moist to allow the penis to enter.
The man moves his penis back and forth in the vagina.
This stimulates the release of semen into the vagina.
When sperm is released from the penis it is called…
ejaculation
What happens after sperm enters the vagina?
Sperm swim towards the uterus.
They then swim towards the oviduct.
If a sperm cell meets an egg there, fertilisation can happen.
What happens after fertilisation?
The fertilised egg divides into a ball of cells called an embryo.
The embryo attaches to the lining of the uterus and begins to develop into a baby. This is called implantation.
How often is an egg released from an ovary?
Once a month