Ovaries and eggs
Eggs are made in the ovaries.
Eggs from birth
A baby girl is born. Her ovaries are tiny.
What do they hold already?
What this lesson covers
The idea
Eggs are made in the ovaries, which also produce some hormones; the ovaries hold thousands of immature eggs at birth, and from puberty one egg is produced every month by one of the ovaries.
Eggs from birth
A baby girl is born. Her ovaries are tiny.
What do they hold already?
- Thousands of immature eggs
- No eggs at all
- One fully grown egg
The ovaries over time
Press Next step. This is a schematic diagram.
Many eggs, one a month
The ovaries make the eggs and some hormones. A girl is born with thousands of immature eggs. From puberty, one egg is produced every month by one of the two ovaries.
Eggs are made in the ovaries, which also produce some hormones. The ovaries hold thousands of immature eggs at birth, and from puberty one egg is produced every month by one of the ovaries.
Notes
Eggs are made in the ovaries, which also make some hormones. There are thousands of immature eggs at birth, and from puberty one egg a month is produced by one of the ovaries.
Check yourself
Where are the eggs made?
What do the ovaries contain when a girl is born?
From puberty, how many eggs are produced every month by one of the ovaries?
Answer: 1 egg
- In the uterus. The uterus is an elastic bag-like structure where the embryo grows. Eggs are made in the ovaries.
- In the ovaries — correct. Yes!
- In the vagina. The vagina is the passage into which the uterus opens. Eggs are made in the ovaries.
- No eggs, which are made only after puberty. The ovaries already contain thousands of immature eggs at birth.
- One mature egg ready to be released. The ovaries contain thousands of immature eggs. Some start maturing on reaching puberty.
- Thousands of immature eggs — correct. Yes!