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insulating sheath that speeds up the transmission of impulses along an axon
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∙ 11y ago
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What does the sheath do in the nerve cell?
The myelin sheath acts as a covering on the axon of a neuron just as the covering on the cord you plug into an electrical socket. If it is damaged, the current can be "short circuited" and the neuron and the axon will not function. This sheath allows impulses to travel rapidly. MS is a disease where these sheaths are damaged.
What is the name for the insulation covering many neurons?
Myelin sheath. This is the insulating sheath which covers most of the axon, between the Axon Hillock and Collateral branches of the Neuron.
The insulating material produced by Schwann cells is known as what?
The insulating material produced by Schwann cells is known as myelin. Myelin forms a protective covering around nerve fibers, allowing for faster transmission of nerve impulses. This insulation is critical for proper functioning of the nervous system.
It insulates the axon of the neuron?
An insulating layer that surrounds the axon is a myelin sheath.
Where are the nodes of a neuron located?
Between myelin segments surrounding the axon The axon of a neuron is the single long fibre which caries impulses away from the cell body. It is surrounded by a fatty layer, the myelin sheath, produced by Schwann cells arranged along the length of the axon. The gaps between the myelin sheath cells are called nodes of Ranvier. See http://en.wikipedia.org/wiki/Axon for more information and a diagram. easy answer between the myelin segments surrounding the axon b. between myelin segments surrounding the axon
Axon diameter increases noticeably at the nodes of ranvier What purpose does this serve?
the axonal diameter increases due to the myelin wraped tightly around the axon.
What is the fatty substance that speeds up transmission of impulses and surrounds the axon of a neuron?
The fatty tissue surrounding the axon of a neuron is called myelin.
What does the sheath do in the nerve cell?
The myelin sheath acts as a covering on the axon of a neuron just as the covering on the cord you plug into an electrical socket. If it is damaged, the current can be "short circuited" and the neuron and the axon will not function. This sheath allows impulses to travel rapidly. MS is a disease where these sheaths are damaged.
what is the covering of a fatty material that speeds up the passage of a nerve impulse?
The fatty tissue is called the myelin sheath (or just myelin), the part of the neurone it covers is the axon.
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 is the name for the insulation covering many neurons?
Myelin sheath. This is the insulating sheath which covers most of the axon, between the Axon Hillock and Collateral branches of the Neuron.
What is medullary?
Medullary (myelin)- sheath is the covering of nerve fibres. It insulates the nerve fibre (axon) and prevents leakage of ions.
What white protective covering over some parts of the spinal cord and axon of most peripheral nerves?
Myelin Sheath
The insulating material produced by Schwann cells is known as what?
The insulating material produced by Schwann cells is known as myelin. Myelin forms a protective covering around nerve fibers, allowing for faster transmission of nerve impulses. This insulation is critical for proper functioning of the nervous system.
What surrounds the axon?
Some but not all axons are covered with Schwann's cells which are filled with myelin.
What is the purpose of wallerian degeneration?
Degeneration of the axon and myelin sheath distal to the injury site caused by the lack of nutrients.
It insulates the axon of the neuron?
An insulating layer that surrounds the axon is a myelin sheath.
