Histogenesis
Histogenesis
Histogenesis (pronounced: his-to-gen-e-sis) is a term in the field of Embryology that refers to the process of tissue formation from the primary germ layers of an embryo. The term is derived from the Greek words 'histo' meaning tissue and 'genesis' meaning origin or formation.
Etymology
The term 'Histogenesis' is derived from two Greek words: 'histo' which means tissue, and 'genesis' which means origin or formation. Thus, histogenesis refers to the origin or formation of tissues.
Process
Histogenesis begins after the process of Gastrulation, where the embryo forms three primary germ layers: the Ectoderm, Mesoderm, and Endoderm. Each of these layers gives rise to specific tissues and organs in the body.
- The Ectoderm forms tissues such as the skin and nervous system.
- The Mesoderm forms tissues such as muscles, bones, and blood vessels.
- The Endoderm forms tissues such as the lining of the digestive and respiratory systems.
Related Terms
- Organogenesis: This is the process of organ formation that takes place after histogenesis. It involves the development of the organ's structure from the primary germ layers.
- Morphogenesis: This is the biological process that causes an organism to develop its shape. It is one of the fundamental aspects of developmental biology.
- Cell differentiation: This is the process where a cell changes from one cell type to another. It is usually the final stage of development, preceded by several stages of cell proliferation.
See Also
External links
- Medical encyclopedia article on Histogenesis
- Wikipedia's article - Histogenesis
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