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In preserved brains, the myelinated axons look white. Therefore, what we call "white matter" is typically made of axons.
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What is the name for bundles of myelinated axons in the PNS?
nerves
Is white matter dense in myelinated axons?
Yes White matter is the part of the nervous system that is dense is myelinated axons
What is meant when axon is described as myelinated?
Most axons are covered with a protective sheath of myelin, a substance made of fats and protein, which insulates the axon. Myelinated axons conduct neuronal signals faster than do unmyelinated axons.
Where do faster neural impulses occur?
They occur in insulated or myelinated axons.
What is the meaning of cerebral medulla?
The cerebral medulla is the white matter (myelinated axons) of the cerebrum.
What is the name for bundles of myelinated axons in the PNS?
nerves
What contains myelinated axons?
Myelinated Fibers.
Is white matter dense in myelinated axons?
Yes White matter is the part of the nervous system that is dense is myelinated axons
What connective tissue cover myelinated or unmyelinated axons?
The connective tissue that covers unmyelinated and myelinated axons is called endoneurium.
Are all the gated calcium channels concentrated at the nodes of ranvier of myelinated axons?
no, most gated mandiable channels are concentrated at the nodes of ranvier of myelinated axons.
Myelinated neurons are embedded in what?
the axons of myelinated neurons are embeded in a protective covering of gray matter.
In myelinated axons where are the voltage gated sodium channels concentrated?
In myelinated axons, the voltage gated sodium ions are located along the nodes of Ranvier, the exposed places between the myelin segments. The gates here, however, are not particularly more concentrated than on other un-myelinated axons. TRUE
What is meant when axon is described as myelinated?
Most axons are covered with a protective sheath of myelin, a substance made of fats and protein, which insulates the axon. Myelinated axons conduct neuronal signals faster than do unmyelinated axons.
White matter of the nervous system is composed of?
White matter in the nervous system is caused when the axons in the area are myelinated. This means that the axons have a fatty protein covering to provide insulation. The myelin sheath is composed of special cells calls Schwann Cells.
What absent in the gray matter of the spinal cord?
myelinated axons
Which type of cell produces the myelin covering around the axon of a neuron?
In the central nervous system, neuronal axons are myelinated by oligodendrocytes. In the peripheral nervous system axons are myelinated by Schwann cells.
Where do faster neural impulses occur?
They occur in insulated or myelinated axons.
