there are specialized cells in the nervous system produce and form the myelin
in the central nervous system (brain & spinal cord) by oligodendrocytes
in the peripheral nervous system by schwann cells
Myelin is supplied by Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system. Myelin is essentially many layers of cell membrane formed by the multiple wrappings of Schwann cell or oligodendrocyte membranes around the axon of a neuron.
Myelin is made of lipids of proteins, but it functions slightly differently depending on where in our nervous system it's employed. Our body has a Peripheral Nervous System that branches from the spinal cord to carry information related to sensory input, while our brain's Central Nervous System determines how to act on that input. Each of these systems synthesizes myelin in a different way.
Myelin sheath comes from mesoderm. During development of brain, cells from mesoderm, invade the neurons and cover them. This is done under guidance from your genetic material. How this happens is beyond the human imagination.
In the central nervous system, oligodendrocytes are responsible for myelination and in the peripheral nervous system, the Schwann cells are.
a soft, white, fatty material in the membrane of Schwann cells and certain neuroglial cells
Myelin is the material that covers the spinal cord. It protects the cord from damage. If the myelin wears away, then a person is said to have Multiple Sclerosis.
Myelin is composed of about 80% lipid and about 20% protein. Some of the proteins that make up myelin are myelin basic protein (MBP),myelin oligodendrocyte glycoprotein (MOG), and proteolipid protein (PLP). Myelin is made up primarily of a glycolipid calledgalactocerebroside. The intertwining of the hydrocarbon chains of sphingomyelin serve to strengthen the myelin sheath.There are quite a few disease (multiple sclerosis, optic neuritis, transverse myelitis..) involved in the destruction of the axon myelin sheath also known as myelin sheath.http://en.wikipedia.org/wiki/Myelin
Myelin makes it easier for acons to transmit signals- it speeds there work.
Cerebrum
Myelin sheath is the insulation of the CNS (central nervous system). Its helps electrical signals move along nerves. Basically, its synonymous with insulated wire. Again the insulation help the signal move in a smooth and controlled fashion through out the body.
The glial cells that surround the neurons produce myelin.
Myelin sheath
Oligodendrocytes
Oligodendrocytes and Schwann cells both produce myelin. Oligodendrocytes produce myelin in the CNS, whereas Schwann cells produce myelin in the PNS. CNS refers to central nervous system PNS refers to peripheral nervous system
Myelin sheaths insulate nerve fibers
A myelin sheath is a layer of myelin (a dielectric, or electric insulator) around the axon of a neuron.
An insulating layer that surrounds the axon is a myelin sheath.
Myelin Sheath Myelin Sheath
No, neurotransmitters do not form the myelin sheath. Myelin is formed by specialized types of glial cells called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. Neurotransmitters are chemicals that are released by neurons to transmit signals across synapses.
myelin sheath peace.love.faith
Myelin Sheath Myelin Sheath
Nicotine stimulates CREB phosphorylation which regulates the expression of myelin basic protein and myelin oligodendrocyte glycoprotein.