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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 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 purpose does the myelin covering an axon serve?
Myelin acts as an insulating layer around the axon, allowing for faster transmission of electrical impulses. It helps to speed up nerve conduction and prevents signal loss by reducing interference between neighboring nerve fibers.
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
Is and axon bulb and an axon hillock the same thing?
axon hillock = where cell body meets the axon axon bulb = end of the axon...lies very close to the dendrites of another neuron so impulses can pass over the synapse. AP Biology student *
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 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.
True or false The axon of a neuron is often surrounded by a fatty covering called the myelin sheath?
True. The axon of a neuron is often surrounded by a fatty covering known as the myelin sheath, which insulates the axon and enhances the speed of electrical signal transmission along the nerve cell. This myelination is crucial for efficient communication between neurons and is produced by glial cells.
What is the name of the area where nerve impulses arises?
receptive region?
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
What is nother name for an impulse transmitter?
axon
What makes up the outer covering of an axon?
The outer covering of an axon is primarily composed of a myelin sheath, which is formed by glial cells. In the peripheral nervous system, Schwann cells create this myelin, while in the central nervous system, oligodendrocytes perform the same function. The myelin sheath is segmented by nodes of Ranvier, which facilitate faster signal transmission through saltatory conduction. Additionally, the axon is surrounded by a layer called the endoneurium, which provides structural support.
What is the name given to the long section of a neurone?
the axon
What are the small swellings at the end of a neuron called?
synaptic knobs (or axon terminals<--more commonly used name)
What purpose does the myelin covering an axon serve?
Myelin acts as an insulating layer around the axon, allowing for faster transmission of electrical impulses. It helps to speed up nerve conduction and prevents signal loss by reducing interference between neighboring nerve fibers.
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
