the ectodermal tube formed in the embryo that gives rise to the brain and spinal cor
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This structure is known as the neural tube. Show more…
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49. The tube formed by the neural ectoderm is the precursor to the brain and spinal cord, known as the neural tube. 50. The morphogenetic movements of the neural ectoderm form the neural plate.
Adi S.
The neuroectoderm appears along the length of the embryo and thickens to form the neural plate. The neural plate sinks and its edges thicken, forming a neural groove with a raised neural fold along each side. The neural folds then fuse along the midline beginning in the cervical region and progress toward the nose and tail. The lumen of the neural tube becomes a fluid-filled space that later develops into the central canal of the spinal cord and the ventricles of the brain. A hollow channel called the neural tube forms, which eventually will grow lateral processes that later form motor nerve fibers.
In vertebrate embryos the brain develops from the (a) spinal cord (b) sympathetic nervous system (c) parasympathetic nervous system (d) neural tube (e) forebrain
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