Neuropore is a term commonly used in neuroanatomy, which refers to the elongated channel at the cranial or caudal end of the neural tube. The word "Neuropore" is spelled /njʊəroʊpɔːr/ with the first syllable pronounced as "nju", and the second syllable with the vowel sound similar to that in "oar". The final syllable is pronounced as "por" with silent "e". It is important to spell this term correctly to avoid confusion and ensure accurate communication in the field of neuroanatomy.
Neuropore refers to a central opening in the embryonic neural tube, which is a hollow structure that eventually develops into the brain and spinal cord during the early stages of embryogenesis. This small aperture is found at the anterior (rostral) end of the neural tube, and it plays a crucial role in the proper closure and development of the nervous system.
During the early formation of the neural tube, two neuropores develop at opposite ends, known as the cranial (anterior) and the caudal (posterior) neuropores. The proper closure of these neuropores is necessary for the normal development of the brain and spinal cord. If the neuropores fail to close completely, it can result in malformations known as neural tube defects, such as anencephaly (partial or complete absence of the brain) or spina bifida (incomplete closure of the spinal cord).
The closure of the cranial neuropore is particularly significant as it marks the beginning of brain development. Once it closes, the neural tube differentiates into various regions, including the forebrain, midbrain, and hindbrain. The proper closure of the neuropores is a critical step in the process of neurulation and the normal formation of the central nervous system.
An opening in the embryo leading from the neural canal to the exterior.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "neuropore" is derived from two Greek roots: "neuro" and "pore".
The root "neuro" is derived from the Greek word "neuron", meaning "nerve". This root is commonly used in scientific terms related to the nervous system.
The root "pore" is derived from the Greek word "poros", meaning "passage" or "opening". It is often used in scientific terms to refer to microscopic openings or channels.
When combined, "neuro" and "pore" create "neuropore", which refers to a specific opening or passage in the embryonic development of the neural tube. The term is primarily used in the field of embryology to describe the initial openings that form during the early stages of brain and spinal cord development.