Myelin
Myelin is a fatty white substance that surrounds the axon of some nerve cells, forming an electrically insulating layer. It is essential for the proper functioning of the nervous system. It is an outgrowth of a type of glial cell.
The production of the myelin sheath is called myelination or myelinogenesis. In humans, myelination begins in the 14th week of fetal development, although little myelin exists in the brain at the time of birth. During infancy, myelination occurs quickly, leading to a child's fast development, including crawling and walking in the first year. Myelination continues through the adolescent stage of life.
Schwann cells supply the myelin for the peripheral nervous system, whereas oligodendrocytes, specifically of the interfascicular type, myelinate the axons of the central nervous system. Myelin is considered a defining characteristic of the (gnathostome) vertebrates, but myelin-like sheaths have also been seen in some invertebrates, although they are quite different from vertebrate myelin at the molecular level. Myelin was discovered in 1854 by Rudolf Virchow.
Podcasts:
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Melanie
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by Malina
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by Malina
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by Malina
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by Malina
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by Malina
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by Malina
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by Malina
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by Malina
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by Mulan
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by Milano
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by Maligno
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by Malene
Bo Bo's Party
by: MelanieOnce I bought a curious bottle,
Once I bought a bottle for fun.
Tell me what you gonna do with the bottle
When the curiousity's done.
Well I brought it out to the Bo Bo's party
Then I got it in to the company,
Then I brought it up to the boys in the backroom,
They got the knack to tune in on me,
Then I brought it up to the boys in the backyard.
I find it hard to hold on me,
I find it hard to hold, I find it hard to hold,
I find it hard to hold on me, I find it hard to hold on me,
I find it hard to hold, hard to hold, hard to hold.
You know, I've been bad, but
I would be good instead.
Ah, if my man did half of the things that he said,
I wouldn't have to go to the Bo Bo's party
I wouldn't have to go to the company,
I wouldn't have to go to the boys in the backroom,
With their knack to tune in on me,
I wouldn't have to go to the boys in the backyard.
I find it hard to hold on me,
I find it hard to hold, I find it hard to hold,
I find it hard to hold on me, I find it hard to hold on me,
I find it hard to hold, hard to hold, hard to hold.
You know, I've been bad, but
I would be good instead.
Ah, if my man did half of the things that he said,
I wouldn't have to go to the Bo Bo's party
I wouldn't have to go to the company,
I wouldn't have to go to the boys in the backroom,
With their knack to tune in on me,
I wouldn't have to go to the boys in the backyard.
I find it hard to hold on me,
I find it hard to hold on me,
I find it hard to hold.