Embryology

Embryology is the branch of biology that studies the development of embryos from the fertilization of the ovum to the fetus stage. It involves the study of the processes of fertilization, development of the embryo, and formation of the different organ systems.

Key Concepts to Study

1. Fertilization: The process by which a sperm cell penetrates an egg cell and forms a zygote.
2. Embryo Development: The stages of development from the zygote to the formation of the major organ systems.
3. Germ Layers: The three primary layers of cells in the embryo from which all organs and tissues develop.
4. Organogenesis: The process of organ formation during embryonic development.
5. Teratogenesis: The study of abnormal development and congenital malformations.

Study Guide

To effectively study embryology, it is important to understand the following key areas:

1. Learn the stages of human embryo development from fertilization to the fetal stage.
2. Understand the role of germ layers in the development of different organ systems.
3. Study the different factors that can affect embryonic development, such as genetic and environmental influences.
4. Explore the formation of specific organs and tissues during organogenesis.
5. Examine the impact of teratogens on embryonic development and the resulting congenital malformations.

By mastering these concepts, you will have a solid foundation in embryology and be able to understand the intricate processes involved in the development of organisms from fertilized egg to fully formed fetus.