Yes. You are right. White matter of brain is mainly composed of myelin sheaths, which surround the axons and gray matter is composed of nerve cell bodies.
it contains myelin sheath which is a fatty white substance
Myelin Sheath Myelin Sheath
Myelin Sheath Myelin Sheath
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The Myelin Sheath around the axon
The endoneurium surrounds and protects the myelin sheath.
A myelin sheath is a layer of myelin (a dielectric, or electric insulator) around the axon of a neuron.
the Myelin Sheath Myelin Sheath Your welcome I had to look for it
Oligodendrocytes are specialized neurolgical cells that produce myelin sheath.
Myelin insulation insulates nerve fibers by wrapping around them and forming a protective sheath. This myelin sheath helps to increase the speed of nerve impulse conduction along the nerve fibers.
myelin sheath
Schwann cells make the myelin sheath in the PNS. Each of the Schwann cells myelinate their own segment of the axon, they work together to make the myelin sheath.