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Oligodendrocytes
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∙ 12y ago
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∙ 13y agooligodendrocytes
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What are axons surrounded by?
Myelin sheath
State the structure of neurons which reduces leakage of impulses?
Myelin sheath, which is only found on long axons (white matter), not on short cortical neurons (grey matter).
What sheath covers the axon to speed up nerve tranmissions?
Schwann cells are neuroglial cells that actually cover and insulate axons. They not only help to spend up nerve transmission, but they also feed the neuron.
What is the name of covering of axon?
Because this is tissue from the brain (CNS), it is an oligodendrocyte which wraps around axons of neurons in the CNS to form a fatty myelin sheath. If it were PNS axons in say spinal or cranial nerves, the answer would be be Schwann cells.
Is a chronic inflammatory disease of the nervous system in which immune cells attack myelin sheat of the nerve cell axons?
are you asking 'what is the chronic inflammatory disease in which the immune system attacks the myelin sheath of nerve cell axions? if that is your question, the answer is Multiple Sclerosis.
What iscomposed of lipid material and covers axons?
The myelin sheath is composed of lipid material and covers axons.
What is the fatty tissue that covers axons and speeds up impulses as they travel from cell to cell?
That substance is called the myelin cell or myelin sheath.
What are axons surrounded by?
Myelin sheath
What is the purpose of myelin sheath?
This is a process that occurs in the CNS and PNS with axons. In the CNS oligodendrocytes surround the axons and in PNS schwann cells surround the axons. the myelin sheath will increase the speed of nervous conduction along the axon.
What does myelin sheath wrap around?
The myelin sheath wraps around the around the axon of a neuron. The gaps of the myelin sheath are not insulated and are therefore capable of generating electrical activity.
Where are nodes of ranvier found?
In the fatty myelin sheath there are gaps between the axons. The myelin sheath gaps are referred to as the nodes of Ranvier.
What are specialized coverings of the axon?
Myelin covers the axon to protect it and help messages travel faster. Two types of cells produce myelin, the oligodendrocytes in the CNS and Schwann cells in the PNS.
A neurologic disease that destroys the myelin sheath around axons?
multiple scerlosis
Which structure if the neuron transmits an impulse through the myelin sheath?
Neural impulses (action potentials) are transmitted through axons which are covered in a myelin sheath for insulation.
What is fat and white and wraps around the fastest axons?
The Myelin sheath is fat and white and wraps around the fastest axons.
How does the myelin sheath and synapse affect nerve impulses speed up or slow down?
Myelin sheath insulates axons for speedier signaling
What kind of a coating do axons have?
Axons are coated in a fatty substance called myelin - a "myelin sheath". It insulates and protects the cell body of neurones. The myelin doesn't completely coat the axon: there are small gaps between the myelin, called the nodes of Ranvier.
