What is a nerve tube?
neural tube is the structure of the embryo of vertebrates that develops in the brain and spinal cord. It forms from a genetically led tissue plate cover inside the embryo. These are divided into sections at different locations in a tube that correspond to the location of the brain areas that will become. The peripheral nervous system develops outside the nerve tube through migration of nerve ridge cells. The incomplete closure of the tube in the brain or spine results in serious congenital defects.
The formation of the nerve tube takes different lengths of time, depending on the body. People start three to four weeks after conception. Soon in development, the nerve groove arises from the tissue plate and deepens when it folds through the central axis. The genes that control this process called Hox genes are the subset of the Embryo organization system into structural divisions. Together with the family of CDX proteins moderating action, the genes Hox are critical when directing nerve cells to their respective places in the embryo.
The development of the nerve tube is called non -rules. Primary non -surulation occurs as soon as the nerve plate is formed, causing the edges of the plate fold down and close the center of the plate. The engine/neuromuscular control centers come from the tissues in the ventral part of the tube, the area connected to the basal plate. On the other hand, somatosensory functions, including perceptions and other forms of sensation, are associated with alarm in the dorsal part of the tube. Secondary non -rules occur when the cells along the nerve plate form the hollow space inside and complete the tube.
Bugs induced by liquid divides the nerve tube into four sections, the first three will become the brain, while the last form the spinal cord. The Hox genes control the division of the nervous regions of the US system because Hindbrain, Midbrain and For -Charoin are developing from the Rhomebencephalon, Mesencephalon and Prosencephalon tube. During this process, new neurons are formed because the tissue called the nerve ridge separates from the tube and migraIt sees all over the embryo. Nerve ridge cells will eventually become nerves of the peripheral nervous system.
Bifida spina is a common defect of the nerve tube that occurs early during pregnancy during a short time when the tube is open, and results in an incomplete closing of the fetus. The vertebrae that surround the spinal cord cannot fully surround it, so that the cord and sometimes the membrane filled with liquid protrude from the column. When the upper part of the nerve tube does not close, the condition called the anencephalia results in a partially exposed and deformed brain. Prior to conception, supplements of folic acid reduce the risk of defects such as bifida spina.