Anatomy & Physiology › Section Y · Reproduction and development › Topic Y.3
Development of the reproductive systems
Every embryo starts with the same set of reproductive tissues, and a short chain of genes and hormones steers them towards testicular or ovarian anatomy. The same hormonal axis then lies quiet through childhood and reawakens at puberty.
In this topic
- One starting kit, two outcomes
- SRY and the gonad
- Two duct systems, one kept
- External genitalia from shared tissue
- Worked example: an XY fetus whose cells ignore androgens
- Differences of sex development
- Childhood and the trigger for puberty
- Worked example: why gonadotropins rise
- What affects the timing of puberty
- Signs of puberty
- Common mistakes to avoid
- Key takeaways
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