It will be helpful to have a conceptual framework in place before we go into greater detail about human prenatal development.1 making things - how do we make things? how does the embryo make itself? how can we 'think' like an embryo? more...
2 periods of development - timing of the pre-implantation period, embryonic period, and fetal period. more...
3 human embryology -an illustrated overview of the steps occurring during human prenatal development. more...
(For the development of individual body systems, click here.)
