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what is the covering of a fatty material that speeds up the passage of a nerve impulse?
Wiki User
∙ 10y ago
The fatty tissue is called the myelin sheath (or just myelin), the part of the neurone it covers is the axon.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoMyelin sheath
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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 type of protein speeds chemical reactions?
enzymes
What protein speeds up chemical reactions?
enzymes?
Nodes of ranvier are found in?
In invertebrate nerves, axons and dendrites are uncovered, and signal transfer is a fairly slow process. In vertebrates, many axons and dendrites are covered in myelin, a fatty substance which insulates the nerves and speeds up conduction. However, for signal conduction to occur, ions have to be able to move in and out of the nerve along its length to transmit the impulse. Since ions can't diffuse through myelin, they have to go through the nodes of Ranvier. This is called saltatory conduct.
Which is a type of protein that speeds up chemical reactions in living things?
An enzyme is a type of protein that speeds up chemical reactions in living things by lowering the activation energy of said reactions.
What nerve structure speeds the passage of a nerve impulse?
Myelin sheath and nodes
What is the jolt your car feels when is speeds up or slows down?
Impulse
When the nerve impulse encounters a myelin-covered section of neuron?
it jumps over the myelin
What purpose does the myelin covering an axon serve?
insulating sheath that speeds up the transmission of impulses along an axon
Why does sound travel at different speeds through different mediums?
because of material density
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Waves travel at different speeds depending material density and propagation quality
Does time stop in space?
No. The only thing that affects the passage of time is extreme speed, speeds very near the speed of light.
Do a light ray speeds up or slow down when it passes into a denser material?
yes,it will slow down
What affect does poes use of short sentences have on the pacing of this passage?
It speeds up the pacing of a story
Are wave speeds dependent on material?
Yes, wave speeds are dependent on the material through which the wave is propagating. Different materials have different properties that affect how quickly a wave can travel through them. For example, sound waves travel faster in solids than in liquids or gases. Similarly, electromagnetic waves, such as light, travel at different speeds in different mediums, with the speed being fastest in a vacuum.
How does temperature affect the speed of sound through a material?
Temperature affects the speed of sound through material by kinetic energy. The more molecules the higher temperatures will have more energy.
What is a speed drill?
This variable speed drill is for drilling different diameter chose different speeds. Workpiece material in the drill speed is important.
