What are Schwann's cells?

In the nervous system, gli cells are provided that provide many support functions, including the creation of myelin pockets around the axon of neuron. Schwann's cells, or neurolemmocytes discovered by Theodore Schwann, are glial cells found in the peripheral nervous system that are wrapped around the neuron axon several times until the myelin case is formed. Myelin vagina is formed in segments, leaving the gaps between them and putting white under the cortex of its white appearance. The vagina operates to isolate the axon, send messages throughout the brain quickly, and prevent interference from other messages. Damage to myelin poles in the central nervous system causes numerous disorders and this is evident in neurological disease multiple sclerosis.

To form a myelin cloak around the axon in the peripheral nervous system, numerous schwann cells of the UP line along the length of the axon and surround itA pair of plasma membranes called mesaxon. These surrounding membranes are wrapped many times axon and creates a thick layer that insulates the axon. Schwann cell is wondering around the axon segment, usually covering between 0.15 and 1.5 mm, creating small gaps between each segment called the Ranvier node. If the axon is thick, the longer area of ​​the axon will be myelininated by the Schwann cell. The number of Schwann cells needed to create a myelin shell changes, and since the nerves can be quiet in the peripheral nervous system, several hundred Schwann cells may be required.

The importance of myelin pockets was discovered as a result of neurological disease of multiple sclerosis. Patients suffering from multiple sclerosis show areas of damaged tissue in the brain. This happens when the immune system attacks a particular protein in myelin prachles that surround the axons in the central nervous system. My vagina in the central nervous system consists of different glial cells called oligondenDrocytes, and when these pouts are damaged, patients suffer from various motor and sensory disorders.

German physiologist Theodore Schwann was the first to discover Schwann's cells and proposed cell theory. Schwann's cell theory states that cells are the smallest structural and functional units in the living organism and that cells can only come from cells that already exist. They also claim that all forms of life, plants and animal, are formed by cells.

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