David Attenborough describes the process of human fertilisation, following sperm on their journey through the womb and along the fallopian tube to the egg.

This clip is from:
Bitesize Secondary, Science 1
First broadcast:
28 February 2008

Reproduction in humans could be explored both in terms of endocrinology and the hormonal control of processes and in terms of the cells involved. Male and female gametes, gonads and organs could be compared with those of other animals and plants and the relative processes explored.