"Neurocoele" is a biological term referring to a cavity in the brain or spinal cord containing cerebrospinal fluid. This word is spelled phonetically as /nʊərəʊˈsiːl/, with emphasis on the second syllable. The "neuro" prefix indicates a relation to the nervous system, while the "coele" suffix refers to a cavity or hollow space in the body. The spelling follows English language phonetic rules and stems from Latin and Greek origins. This term is commonly used in the field of neuroscience and related disciplines.
The term "neurocoele" refers to a central cavity or fluid-filled space within the nervous system of certain organisms. It is primarily found in early embryonic stages and serves as a precursor to the development of the brain and spinal cord. This transient structure is formed during neurulation, a vital process in the early development of the nervous system.
The neurocoele emanates from the ectoderm, which is the outermost layer of the embryo. As neurulation progresses, a neural plate is formed. This plate then invaginates itself, forming neural folds that eventually come together and fuse, creating a hollow tube known as the neural tube. The internal cavity of this neural tube is referred to as the neurocoele.
The neurocoele plays a crucial role in the subsequent development and organization of the central nervous system. Various regions differentiate within the neurocoele, ultimately giving rise to different regions of the brain, including the forebrain, midbrain, and hindbrain. It also forms the central canal of the spinal cord. The neurocoele provides a protected environment and plays a critical role in the circulation and distribution of cerebrospinal fluid, which supports and nourishes the developing nervous tissues.
Once the neural tube is fully formed, it undergoes further structural modifications, ultimately becoming the definitive brain and spinal cord. As development progresses, the neurocoele eventually diminishes or becomes incorporated into specific regions, becoming integral to the mature central nervous system.
The central cavity of the cerebrospinal axis, the combined ventricles of the brain and central canal of the spinal cord.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "neurocoele" is derived from two Greek roots: "neuron", meaning nerve, and "koilos", meaning hollow or cavity. In anatomy, the term "coele" refers to a cavity or space.
Therefore, "neurocoele" refers to the hollow or cavity within the neural tube, which is the embryonic structure that gives rise to the central nervous system.