B1.3.3 - Fertilisation and implantation Flashcards
1
Q
What is the scientific term for reproductive cells (egg and sperm cells)?
A
Gametes
2
Q
The male gametes are…
A
Sperm cells
3
Q
The female gamete is the
A
Egg cell (Ovum)
4
Q
When an egg and sperm cell join together, we call it…
A
fertilisation
5
Q
The oviducts are lined with cells lined with small hair like structures called…
A
cilia
6
Q
What is the function of the cilia that line the oviducts?
A
They waft the egg released by the ovary along to the uterus.
7
Q
What happens during sexual intercourse?
A
- 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 stimulate the release of semen into the vagina.
8
Q
When sperm is released from the penis it is called…
A
ejaculation
9
Q
What happens after sperm enters the vagina?
A
- Sperm swim towards the uterus.
- They then swim towards the oviduct.
- If a sperm cell meets an egg there, fertilisation can happen.
10
Q
What happens after fertilisation?
A
- 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.
11
Q
How often is an egg released from an ovary?
A
Once a month
