Neural Crest
Neural Crest
The Neural Crest (pronunciation: /ˈnʊərəl krɛst/) is a crucial structure in vertebrate embryology.
Etymology
The term "Neural Crest" is derived from the Latin words 'neur' meaning 'nerve' and 'crest' meaning 'ridge'. It was first used in the late 19th century to describe the ridge of cells that forms along the edges of the neural plate during embryogenesis.
Definition
The Neural Crest is a group of cells that originate in the ectoderm, the outermost layer of cells in the embryo. These cells migrate throughout the body and differentiate into a variety of cell types, including neurons, glial cells, melanocytes, and adrenal medulla cells.
Function
The Neural Crest plays a critical role in the development of the peripheral nervous system, the craniofacial structures, and the cardiovascular system. It is also involved in the formation of the endocrine system and the immune system.
Related Terms
- Neural Plate: The flat group of cells present in embryonic development from which the neural tube and neural crest cells form.
- Neural Tube: The embryonic structure that develops into the brain and spinal cord.
- Neural Crest Cells: The cells that originate from the neural crest and migrate to various parts of the body to differentiate into various cell types.
- Ectoderm: The outermost layer of cells in the embryo, from which the neural crest cells originate.
- Neurulation: The process by which the neural plate folds to form the neural tube.
External links
- Medical encyclopedia article on Neural Crest
- Wikipedia's article - Neural Crest
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