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Myelinated nerves are white, and composes the white matter of the brain and spinal cord they also are able to pass an action potential down an axon much faster; Unmyelinated nerves are gray, and composes the gray matter of the brain and spinal cord. These nerves transmit signals much slower
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How do myelinated nerves conduct nerve faster than unmyelinsted nerves?
With the myelinated nerves, the electrical signal jumps from one space between the myelin to another making the signal to travel faster while the unmyelinated nerves have electrical signals that has to travel all the way through without jumping.
How does myelination affect nerve conduction velocity?
Myelination will speed the nerve conduction velocity considerably. Myelin is found in Schwann cells which encircle a given axon. It acts mainly as an insulator so that depolarization in one cell does not set off depolarizations in adjoining cells. When a neural membrane is depolarized, local currents are set up between positive and negative ions causing membrane conduction. In myelinated fibers, the local currents go from one internode (or node of Ranvier) in between two Schwann cells to the next internode. Thus we have "salutatory conduction" where a neural impulse actually jumps from one internode to the next without being conducted down the entire cell membrane.
What kind of epithelial tissue is characterized by being only one cell layer thick?
Simple For example, simple cuboidal epithelium A layered version would be Stratified cuboidal epithelium
What is the difference between sleep and being unconscious?
Sleep is a natural state of rest for the body and mind, characterized by cycles of brain activity and bodily functions. Being unconscious, on the other hand, is a state of being where a person is not aware of their surroundings or able to respond to stimuli, often due to injury or medical reasons.
What is pachygyria?
* (medicine) A malformation of the brain characterized by its being too broad in form.* Unusually thick convolutions of the cerebral cortexAbove retrieved from Answers.comViper1
What is the difference between myelinated and unmyelinated nerves?
structurally they are very similar with the only real difference being that the myelinated (M) nerve (neurone) has schwann cells on its axon surface, but functionally they are very different as the M transmitts nerve impulses alot faster than the non-myelinated(NM) as it has nodes ranvier that allow the impulse to jump from gap to gap between schwann cells and so sppeding the rate at which it can depolarise the membrane to allow transmittion of the impulse, i could go on alot more but i wont :) hope this helps yours scincerly a uni student trying to look smart ;) i got to OXFORD (brookes) ...
How do myelinated nerves conduct nerve faster than unmyelinsted nerves?
With the myelinated nerves, the electrical signal jumps from one space between the myelin to another making the signal to travel faster while the unmyelinated nerves have electrical signals that has to travel all the way through without jumping.
Does the Capricon have any special characteristics?
In astrology, the Capricorn is characterized as being very stubborn but also very successful. It is also characterized as being fearless but reckless.
Are daily low and high tides easy to tell apart?
Yes, daily low tides are characterized by the water being at its lowest point along the shore, whereas daily high tides are characterized by the water reaching its highest point along the shore. This difference in water level makes it easy to distinguish between the two tides.
What is the maximum slope angle for cultivation?
The answer depends on what is being cultivated. Rice paddies require level ground whereas tea prefers slopes.The answer depends on what is being cultivated. Rice paddies require level ground whereas tea prefers slopes.The answer depends on what is being cultivated. Rice paddies require level ground whereas tea prefers slopes.The answer depends on what is being cultivated. Rice paddies require level ground whereas tea prefers slopes.
The connecting rods of a diesel engine are characterized as being part of the?
powertrain
What things characterized the early river civilizations?
Being close to a river
Dos a nerve damaged in surgery repair itself in due course?
The nerve fibres are covered by endoneurium. For a nerve fibre to repair this endoneural layer needs to be present. There are two types of nerve fibres--myelinated and non-myelinated. The myelinated nervefibres are covered by myelin sheath made of schwann cells. These schwann cells have the capacity to secrete substances which repair the nerve fibre. But, the non-myelinated ones don't have a full layer of schwann cells around them. So, they generally don't repair easily once being damaged. However, in any case, endoneurium should be present for a nerve fibre to repair. In damage of nerve fibre during surgery if the nerve is cut, it means the endoneurium is also cut(damaged) at that site. So, usually that nerve can not repair on its own.
Do some neurons lack myelin?
Yes, some neurons in the central and peripheral nervous systems lack myelin. These unmyelinated neurons play a role in transmitting slower signals compared to myelinated neurons, and are important for functions such as pain perception and regulating autonomic functions.
Doldrums are characterized by?
The doldrums are being sad and blue. Feeling depressed and uninspired.
Which ethnic group is characterized as being of mixed black and white ancestry?
Mulattoes
Which ethnic group is characterized as being of mixed white and Amerindian ancestry?
mestizoes
