Schwann cells or neurolemmocytes are the principal glia of the peripheral nervous system (PNS). Glial cells function to support neurons and in the PNS, also include satellite cells, olfactory ensheathing cells, enteric glia and glia that reside at sensory nerve endings, such as the Pacinian corpuscle.The two types of Schwann cells are myelinating and nonmyelinating.
Schwann cell, also called neurilemma cell, any of the cells in the peripheral nervous system that produce the myelin sheath around neuronal axons.Schwann cells are named after German physiologist Theodor Schwann, who discovered them in the 19th century.These cells are equivalent to a type of neuroglia called oligodendrocytes, which occur in the central nervous system.
Schwann Cells and Schwann Cell Lineage. Schwann cells are not only producing myelin in the PNS, but also play an important role in receptor functions and regeneration (for overview see Bunge, 1993). Schwann cell studies are still increasing due to proliferation and differentiation of Schwann cells and to their role in leprosy (Scollard, 2008).
Schwann Cells The myelin sheath is made of a material called myelin, which is produced by special cells known as Schwann cells . Schwann cells are cells in the peripheral nervous system that form ...
Myelination of Axons by Schwann Cells All axons in the peripheral nervous system are surrounded by Schwann cells, and the cover produced by these cells is often referred to as the sheath of Schwann. Schwann cells that surround large diameter axons (A and B fibers; 2 um or larger) undergo a wrapping process called myelination.
This video describes the structure and function of Schwann cells. By Matt Jensen. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Schwann Cell Phenotypes. The endoneural space is composed of axons and nucleated cells, 90% of which are Schwann cells. Schwann cells wrap around peripheral axons, in a regular periodicity, from the root-entry zone (adjacent to the spinal cord) to the distal termination of the axon and form a continuous basal lamina.
Schwann cells have been transplanted into spinal cord injury (SCI) sites for many years and by many people. We now know that after SCI, Schwann cells: Produce growth factors, which stimulate some nerve fiber (axon) regeneration
Schwann cells or neurolemmocytes are the principal glia of the peripheral nervous system (PNS). They were named after physiologist Theodor Schwann. Glial cells function to support neurons and in the PNS, also include satellite cells, olfactory ensheathing cells, enteric glia and glia that reside at sensory nerve endings, such as the Pacinian corpuscle.
Neurology chapter 10. STUDY. PLAY. Terms in this set (...) The ___ is the function unit of the nervous system. neuron. Photophobia is associated with. ... Tumor; cancer of Schwann cells that produce myelin around nerve fibers (nerves which are a type of connective tissue). neurogenic. pertaining to nerve produced by.