SCHWANN CELLS Meaning and
Definition
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Schwann cells, also known as neurilemmal cells, are a type of supportive cell found in the peripheral nervous system (PNS). They are named after the German physiologist Theodor Schwann, who first discovered and extensively studied them in the 19th century.
Schwann cells are responsible for the myelination of nerves in the PNS. Myelination refers to the formation of a protective myelin sheath around nerve fibers, which enhances their conduction speed. Schwann cells accomplish this by wrapping themselves around a single nerve fiber in a spiral pattern, creating multiple layers of myelin membrane. Myelin, composed of lipids and proteins, acts as an insulator and helps to efficiently transmit electrical impulses along the nerve fibers.
Aside from their role in myelination, Schwann cells also play important roles in nerve fiber regeneration and maintenance. After injury to a peripheral nerve, Schwann cells guide and support the regrowth of the damaged nerve fibers, forming a new functional connection between neurons. Moreover, Schwann cells also contribute to the maintenance and nutrition of the nerve fibers, ensuring optimal functioning and health.
In summary, Schwann cells are specialized cells found in the peripheral nervous system that provide crucial support to nerve fibers. They play a crucial role in myelination, nerve regeneration, and maintenance, facilitating efficient and effective communication between neurons in the peripheral nervous system.
Common Misspellings for SCHWANN CELLS
- achwann cells
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- schqann cells
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Etymology of SCHWANN CELLS
The term "Schwann cells" is named after the German physiologist Theodor Schwann. Schwann discovered and described the cells known as Schwann cells in 1839. These cells are a type of neuroglial cell that form the myelin sheath around peripheral nerve fibers, assisting in their function.
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