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These are myelinated fibers just at the junction of the gray matter and the white matter which travel in a tangential, rather than radial, fashion connecting areas of cortex to other areas of cortex. What's special about these U-fibers, and why they are either spared or not in leukodystrophies, is that they comprise the slowest myelinating fibers within the nervous system. These U-fibers begin myelination early in gestation and often aren't completely myelinated until the third or fourth decade of life. Therefore, leukodystrophies in which the pathology is dependent on myelin turnover will demonstrate relative sparing of these fibers as the turnover is extremely slow; while in leukodystrophies which depend on toxic damage to the oligodendroglial cell, subcortical U-fibers are as vulnerable as other myelinated fibers within the nervous system.
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What has the author H U Schmiddin written?
H U. Schmiddin has written: 'Preparation and dyeing of synthetic fibres'
What is the meaning of the word subcortical?
The term subcortical refers to structures or processes that lie beneath the cerebral cortex in the brain. These subcortical structures are involved in functions such as regulating emotions, motor control, and processing sensory information.
What are synthetic fibres and natural fibres?
Synthetic fibres are man-made fibres and natural fibres are fibres that come from plants or animals..
What are the descending fibres of projection fibres?
They include = cortico-spinal fibres + cortico-bulbar fibres + cortico-pontine fibres + cortico-rubral fibres + cortico-striate fibres
What is a subcortical cyst?
A subcortical cyst is a type of cyst that develops on the skeletal frame in the body. Depending on the location, they can be benign, but they can also early indicators of some diseases.
What are some protein fibres in the cellular matrix?
Collagen fibres, reticular fibres, and elastic fibres and protein fibres found in the cellular matrix.
What are blended fibres?
Blended fibres is mixing 2 or more fibres to achieve the best fibres in the yarn.
Are stria terminalis considered as projection fibers?
Projection fibers are usually considered as those fibers that connect the cerebral cortex to subcortical structures and vice versa. The stria terminalis connects the amygdala to the hypothalamus - i.e., two subcortical structures. So, on this basis they are not projection fibers. But because they connect subcortical structures they are referred to as 'association fibers'.
What fibres are in cotton?
Cotton is all cotton fibres.
What are the fibers in cotton?
Cotton fibres are the fibres in cotton.
Do plant cells contain aster?
plant cells do not have aster fibres... aster fibres are those fibres surrounding the centrosomes and centrioles.. since plant cells do not have centrosomes they do not have aster fibres!
What is fibre how it is classified?
fibres are a plant which gives us natural fibre's are classified into 2 types they are natural fibres & synthetic fibres
