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URL:https://www.learndesk.us/class/4615273002827776/lesson/29008c37b00d4bdae840979d9ed03fee?ref=outlook-calendar
SUMMARY:Nervous System Part 2
DTSTART;TZID=America/Los_Angeles:20260517T190000
DTEND;TZID=America/Los_Angeles:20260517T200000
LOCATION:https://www.learndesk.us/class/4615273002827776/lesson/29008c37b00d4bdae840979d9ed03fee?ref=outlook-calendar
DESCRIPTION: Physiology of the Nervous System
Nerve repair or regeneration pg 115

If a neuron cell body is damaged, the neuron dies. However, in the PNS (parasympathetic nervous system), if damage occurs only to the axon of a neuron and the neurolemma is not destroyed, the nerve can repair itself. At the point of injury, the myelin sheath and the distal portion of the axon degenerate. The neurolemma then forms a tunnel from the point of injury to the original destination of the axon; that is, another amazon, a muscle, or a gland. This tunnel provides a path for the Amazon to follow as it regenerates. Nerve regeneration can take a long time; just how long is determined by the length of the Amazon, the location of the injury, the inflammatory response, and the amount of scarring.
In the CNS (central nervous system), oligodendrocytes do not create myelin in the same way the process occurs in the PNS. There is no neurilemma, so no tunnel can form to guide the regrowth of the Amazon from the injury...

https://www.learndesk.us/class/4615273002827776/lesson/29008c37b00d4bdae840979d9ed03fee?ref=outlook-calendar
STATUS:CONFIRMED
SEQUENCE:3
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