Bøger af J.E. Jirasek

The development of an embryo is genetically coded and is based on interactions related to the selective switching on and off of genes. There is no doubt that analysis of human prenatal development is a basis for understanding normal and pathologic relationships between structure and function.

The study of prenatal development provides many clues for understanding the physiology as well as the pathogeny of malformations and many diseases. I learned that the development of a structure is, under normal circumstances, strictly determined and that the development of structures always precedes their proper function.