It will be helpful to have a conceptual framework
in place before we go into greater detail about human prenatal
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.
3 human embryology -an overview of the
steps occurring during human prenatal development.