Schwann cells
schwann cells
Schwann cells make the myelin sheath that encloses some axons
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
No, not at all. The myelin sheaths are actually made by other living cells in the nervous system known as glia. Two types of glia myelinate the nervous system: oligodendrocytes and Schwann cells. The oligodendrocytes for myelin in the central nervous system (brain and spinal cord) and the Schwann cells form myelin in the peripheral nervous system (everything outside the brain and spinal cord).
Oligodendrocytes are specialized neurolgical cells that produce myelin sheath.
The myelin sheath, an insulating layer around the axon of a neuron, is mainly made up of H20 (40%); the dry mass of myelin is made up of mostly lipids (70 - 80%), and the rest is proteins (30 - 15%). There are three types of myelin protein, one of which is myelin basic protein. The lipid that mostly makes up myelin is called galactocerebroside.
The glial cells that surround the neurons produce myelin.
Schwann cells (PNS)
They are called oligodendrocytes but in the peripheral nervous system you would call them schwann cells.
Schwann cells produce myelin in peripheral nerves. Schwann cells wrap around the axon of a neuron to form the myelin sheath, which helps to insulate and speed up the conduction of nerve impulses.
The axon is surrounded by the myelin sheath, which is a fatty insulating layer that speeds up the transmission of electrical signals. Outside the myelin sheath, there are Schwann cells or oligodendrocytes (depending on the type of neuron) that help form and maintain the myelin sheath.
Schwann Cells make the myelin found in the (PNS) Peripheral Nervous System. It also helps speed up neurotransmissions. I hope this was helpful. for the central nervous system (brain & spinal cord) oligodendrocytes form the myelin.