AMYELINIC Meaning and
Definition
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Amyelinic is an adjective that refers to the absence or deficiency of myelin in a certain anatomical structure, usually associated with nerves or fibers. Myelin is a lipid-rich substance that functions as an insulating layer around nerve fibers, allowing for efficient transmission of nerve impulses. When a structure is described as amyelinic, it means that there is either a complete absence of myelin or that myelin is present in insufficient amounts.
The term amyelinic is commonly used to describe certain nerve fibers or sections of the nervous system that lack myelin. These amyelinic fibers transmit nerve signals at a slower rate compared to myelinated fibers. This decrease in conduction velocity can result in impaired or inefficient communication between nerve cells and may potentially lead to neurological symptoms or dysfunction.
Amyelinic structures can occur naturally in the human body, particularly during early stages of development or in specific regions of the nervous system. However, abnormal amyelinic conditions may also arise due to certain genetic disorders, diseases, or injuries affecting the myelin-producing cells or the myelin itself.
In conclusion, amyelinic is used to describe a structure that is lacking proper myelin content, either being completely devoid of it or having an insufficient amount. It generally pertains to nerve fibers or elements of the nervous system where the absence or deficiency of myelin may affect the speed and efficiency of nerve signal transmission.
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Without a medullary sheath or without myelin.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for AMYELINIC
- zmyelinic
- smyelinic
- wmyelinic
- qmyelinic
- anyelinic
- akyelinic
- ajyelinic
- amtelinic
- amgelinic
- amhelinic
- amuelinic
- am7elinic
- am6elinic
- amywlinic
- amyslinic
- amydlinic
- amyrlinic
- amy4linic
- amy3linic
- amyekinic
Etymology of AMYELINIC
The term "amyelinic" is derived from the combination of two roots: "a" and "myelin".
The prefix "a" is derived from the Greek language, meaning "without" or "lacking". It is commonly used to negate or reverse the meaning of a word, indicating absence or opposite.
The word "myelin" refers to a substance that forms a protective covering around nerve fibers in the central nervous system. It is essential for the proper functioning of the nervous system, as it insulates and speeds up the transmission of nerve impulses.
When the prefix "a" is combined with "myelin", it creates the compound term "amyelinic", which describes something as lacking or devoid of myelin. In the context of biology or medicine, "amyelinic" typically refers to nerve fibers or cells that do not have myelin sheaths.
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