Neural groove
(Redirected from Medullary groove)
Neural groove
The neural groove is a key structure that forms during the early stages of embryonic development in vertebrates. It is a shallow median groove of the neural plate between the neural folds of an embryo. The neural groove plays a crucial role in the development of the central nervous system (CNS), which includes the brain and spinal cord.
Formation[edit | edit source]
The formation of the neural groove is part of the process known as neurulation. During neurulation, the neural plate, a thickened region of the ectoderm, begins to fold inward, creating the neural groove. This process is initiated by signals from the underlying notochord, a rod-like structure that defines the primitive axis of the embryo and provides important signals for the development of surrounding tissues.
Development[edit | edit source]
As the neural groove deepens, the neural folds on either side of the groove move towards each other and eventually fuse to form the neural tube. The closure of the neural tube begins in the middle of the embryo and proceeds both cranially (towards the head) and caudally (towards the tail). The successful closure of the neural tube is essential for the proper formation of the CNS.
Clinical Significance[edit | edit source]
Failure of the neural tube to close properly can result in neural tube defects (NTDs), such as spina bifida and anencephaly. These conditions can lead to significant morbidity and mortality. Folic acid supplementation before and during early pregnancy has been shown to reduce the risk of NTDs.
Related Structures[edit | edit source]
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References[edit | edit source]
External Links[edit | edit source]
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