ILOs

• List the three developmental stages of life before birth and give their timings
• Describe important early embryological events: cleavage, blastocyst formation
• Briefly describe the process of implantation
• Describe the extraembryonic membranes, the amnion, the chorion and the yolk sac
• Explain gastrulation and list the major derivatives of the three germ layers
• Summarise the key steps in development between weeks 1-3
• Explain the concept of cell potency

• Embryology
• Life before birth
• Cell potency
• Teratoma