In medicine, a nerve biopsy is an invasive procedure in which a piece of a nerve is removed from an organism and examined microscopically. A nerve biopsy can lead to the discovery of necrotizing vasculitis, amyloidosis, sarcoidosis, leprosy, metabolic neuropathies, inflammation of the nerve, loss of axon tissue, and demyelination. A microscope. ... A microscope. ... Medicine on the Web NLM (National Library of Medicine, contains resources for patients and healthcare professionals) Virtual Hospital (digital health sciences library by the University of Iowa) Online Medical Dictionary Collection of links to free medical resources Categories: Medicine | Health ... Jump to: navigation, search A nerve is an enclosed, cable-like bundle of nerve fibers or axons, which includes the glia that ensheath the axons in myelin. ... Jump to: navigation, search In biology and ecology, an organism (in Greek organon = instrument) is an assembly of organs that influence each other in such a way that they function as a more or less stable whole and have properties of life. ... Microscopy is any technique for producing visible images of structures or details too small to otherwise be seen by the human eye, using a microscope or other magnification tool. ... Jump to: navigation, search Father Damien was a Roman Catholic missionary who helped lepers on Hawaii and also died of the disease. ... In neuroscience, myelin is an electrically insulating fatty layer that surrounds the axons of many neurons, especially those in the peripheral nervous system. ...
Typically, it is the nerve roots, not the plexus itself, that bear the brunt of traumatic avulsive injury because of the lower resistance of nerve roots to stretch (due to lack of a perineurium).
Axonal degeneration was observed in a biopsy of a sensory branch of the radial nerve.
Nerve bundles closely associated with the xanthomata show compression of fascicles (the masses typically are located outside the perineurium) which leads to secondary axonal degeneration and nerve fiber loss.
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