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The myelin sheath around nerve tracts insulate and protect the nerve from too much stimulation and it also makes the electrical current, that is used to feel and move, move faster through the body. People who lack the myelin sheath have serious and life threatening problems because their bodies do not move when it is supposed to, one common disorder of demyelination is multiple sclerosis.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoIt improves the speed of a neural impulse along LONG AXONS and protects it from too much electrical stimulation from nearby neurons. The coating is NOT around the WHOLE neuron; it is only around the AXON.
Some neurons, the grey matter of the brain, do NOT have this coating around their axons, because the axons of grey matter travel only short distances & don't need a speed boost. The neurons which do have a fatty coating are called white matter.
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What do amylase trypsin and lipase break down?
Amylase has a shap which allows it to wrap around and cut up starch. Lipase breaks down the fat to fatty acids and glycerol Amylase has a shap which allows it to wrap around and cut up starch. Lipase breaks down the fat to fatty acids and glycerol
What is the path of an electrical impulse as it moves through a neuron?
The electrical impulse travels into the dendrites, the "input" of the neuron, and into the soma or "body" where the signal gets processed. From there, the processed signal travels down the axon or "output" and into the dendrites of another neuron.
When you touch something hot a neuron in you finger senses the temperature which happens first?
an action forms
What is a message that travels through the neuron?
An Impulse
What is the difference between a hydrocarbon and a fatty acid?
The difference between a hydrocarbon and a fatty acid is that a fatty acid is a hydrocarbon chain with a carboxylic acid head.
Does a neuron have a coating?
Sometimes, depending on the type and function of the neuron, and when it does, it will be on the AXON of the neuron, not the whole neuron. The AXONS of grey matter in the brain do NOT have a coating, but white matter in the brain DOES, as do longer axons in the peripheral nervous system. The Myelin Sheath which coats white matter in the brain is made up of glial cells called oligodendrocytes, and the myelin sheath around peripheral nerve cells are called Schwann cells.
What is a description of the generalized function of an axon?
If you mean the part of a neuron, then an axon transmits the signal created by the nucleus to another neuron. Myelin, the coating around the axon, helps make this process faster.
Fatty covering material of neuron fibers?
Yelin
In a typical neuron sheaths of fatty tissue are called?
In a typical neuron, sheaths of fatty tissue are called the Myelin sheath. The myelin sheath surrounds parts of the axon of a nerve cell which speeds up neurotransmitters.
What part of a neuron is often encased by a fatty myelin sheath?
It is located on the axon
What is the insulating material found around a neuron?
myelin, although it is really only around the AXON of the neuron, not the whole neuron.
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.
This structure of the neuron plays a role similar to the rubber coating?
Myelin sheath, comprised of glial cells wrapped around an axon one after another (oligodendrocytes in the CNS, schwann cells in the PNS).
What does the cerebral cortex compose of?
The cerebral cortex is composed of neuron cell bodies which lack the fatty white myelin sheaths around the axons and so is sometimes referred to as gray matter.
Why is there fat coating around the dendrites and axons?
The fat coating around the dendrites and axons is to insulate them.
What proteins does a neuron make?
A molecule is many order of magnitude smaller than a neuron. A neuron is made of molecules not the other way around.
Why is a plastic coating around a wire?
For insulation.
