What is involved in the development of the central nervous system?

The brain and spinal cord form a central nervous system (CNS) and usually belong to the first part of the body that develops in the embryo. At an important stage of human development, the surface of the embryo usually folds and closes as a tube that indicates the beginning of the development of the central nervous system. As a result, a structure called neuropore is formed and which is usually closed after four weeks of pregnancy. Then several main brain pouch can develop. The CNS continues to be modified throughout life, because nerve cells called neurons grow axons, synapses and growth cones when stimulated.

The development of the central nervous system begins when embryonic tissue above the structure is called the notochord differentiated as neurological. The grooves are usually formed on each side and folds develop. These are usually closed in the middle and then gradually on each side to form a nerve tube. Neural channel is constantly evolving and the upper part or rostral, part of the brain becomesThe tract usually turns into a spinal cord.

In the folds of nerve ridges, many cells become nerve structures called ganglia, as well as protective tissues that surround the brain and spinal cord. Vesicles that form a general framework for specific parts of the brain are usually formed. These include the anterior brain, midbrain and hindbrain vesicles. Three layers of cells in the nerve tube also evolve for the purpose of creating the spinal cord; This process consists of different cells and different structures in the cord. About eight weeks of development of pregnancy and the development of the central nervous system with a cord usually form together with the entire vertebral channel.

nerve cells usually live throughout the life of man. They can die, but instead of being replaced by other cells, the connection between neurons may change. The central nervous system is often dependent on the growth of axons that reach from the cells. The process is affected by a suitable amount of calcium in each cell, burdenMCO synapse at the ends of mature axons are usually formed when neurotropin proteins are triggered.

axons grow and connect to different areas of the brain. Some cells may act as a guide along a particular path, while molecules on some cellular surfaces may reflect growth cones of axon structures. The chemical composition of specific areas can cause axons and nerves. The correct development of the central nervous system is usually the most important during the embryonic stage, because it can affect the well -being of someone throughout life. CNS is also affected by cellular processes that occur into adulthood, which often allows the brain to adapt to the environment.