Human reproductive systems
Introduced| English | Meaning |
|---|---|
| testes/ˈtestiːz/ | The male gonads, producing sperm and testosterone. |
| sperm/spɜːm/ | Male reproductive cells that can fuse with egg cells during fertilisation. |
| testosterone/teˈstɒstərəʊn/ | A steroid hormone involved in reproductive development and functions, including the development of male secondary sexual characteristics. |
| ovaries/ˈəʊvəriz/ | The female gonads, releasing eggs and producing oestrogen and progesterone. |
| oviduct/ˈəʊvɪdʌkt/ | oviduct |
| uterus/ˈjuːtərəs/ | uterus |
| vagina/vəˈdʒaɪnə/ | vagina |
Where new life begins
- Humans reproduce sexually, using specialised male and female organs.
- Each system is built to make gametes and bring them together.
Reproductive organ lab
Match each organ to its role in human reproduction.
Sperm are produced in the:
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The testes make sperm and testosterone.
The male system
- The testes 睾丸 make sperm 精子 and the hormone testosterone 睾酮.
- Sperm travel through the sperm ducts and leave via the penis.
Human gametes: many small sperm cells and one large egg cell
Egg cells are produced in the:
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The ovaries make eggs and hormones.
A baby develops in the uterus (womb).
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The fertilised egg implants and grows in the uterus.
An egg travels from the ovary to the uterus along the ______.
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The oviduct carries the egg; fertilisation happens here.
The female system
- The ovaries 卵巢 make egg cells (ova) and hormones.
- An egg travels down the oviduct 输卵管 to the uterus 子宫 (womb), where a baby could develop.
In humans, fertilisation usually happens in the:
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Sperm meet the egg in the oviduct.
Where fertilisation happens
- Sperm are deposited in the vagina 阴道 and swim up towards an egg.
- Fertilisation usually happens in the oviduct.
Worked example. An egg released from an ovary travels into the oviduct. If sperm are present, one fertilises it there. The fertilised egg then moves to the uterus to implant and grow.
You've got it
- testes make sperm and testosterone; ovaries make eggs and hormones
- the egg travels down the oviduct to the uterus
- fertilisation usually happens in the oviduct