Reproduction
The reproductive system across the human life cycle.
The path through this topic
0 of 9 steps done.
ReadGametogenesis in both sexesHow a diploid stem cell becomes a haploid gamete — and why the male and female versions differ on almost every count.
6 min- ReadThe ovarian and uterine cycles
Twenty-eight days seen twice over: once in the ovary, once in the endometrium, with the hormones that link them.
6 min - ReadHormonal regulation of reproduction
One axis, two feedbacks, and the reversal that produces ovulation.
6 min - ReadFertilisation, pregnancy and controlling fertility
From the meeting of the gametes to the hormones of pregnancy, and how contraception interrupts the chain.
6 min - Memo cardsReproduction: memo cards
The whole of reproduction as a deck: prompt on the front, answer on the back.
4 min 
Multiple choiceReproduction: gametes and cyclesGametogenesis, the ovarian and uterine cycles, and the hormones that link them.
5 min
Match pairsMatch the reproductive hormonesPair each hormone with its origin and its effect.
4 min- Multiple choiceReproduction: harder cases
Feedback reversal, inhibin, hCG and how contraception actually works.
4 min 
Put in orderOrder the reproductive sequencesRebuild the ovarian cycle and spermatogenesis step by step.
5 min
The molecules behind this subject
Real structures, at the scale this chapter happens on. Rotate them on the Mechanisms page.
In 3D: the Cell Lab
The cells from this course, built in 3D and cut open: touch their organelles to read their job and how they look under the microscope, then practise finding them.
Open the Cell Lab