Anatomy of the peripheral nervous system
What is the term for the innermost layer enveloping each nerve fiber
Endoneurium
One mechanical cause of peripheral nerve injury
Crush, traction, contusion, laceration (any)
After peripheral nerve injury this dysfunction has lack of sweating
Autonomic dysfunction
The mildest form of nerve injury
Neurapraxia
The process of sprouting axons
Reinnervation
The protective layer around nerves regulating oxygen sensitivity
Perineurium
Example of common nerve compression injury
Carpal tunnel syndrome
Trophic changes refer to changes in the...
Skin
Type of injury involving damage to axon itself
Axonotmesis
Cell that is crucial for nerve healing / regeneration
Schwann cells
Outermost layer around nerve trunk
Epineurium
A metabolic condition leading to PNS injury
Diabetes
Where do sensory change typically begin?
Distal
Severe nerve injury with full transection of axon
Neurotmesis
Degeneration occurs distal to the injury
Wallerian degeneration
Contains vessels and nerve fibers
Mesoneurium
Ischemia is caused by a change in what in the blood vessels?
Oxygen
The name of the test correlating to protective sensation on hands / feet
Monofilament
Disorder of NMJ
MG
Successful nerve regneration doesn't always guarantee ___
Full recovery
The circulatory system for inner peripheral nerves
Vasa nervorum
An autoimmune disease resulting in peripheral nerve injury
Guillain-Barre, MS, HIV (any)
Gait that may appear due to motor nerve damage
Shuffling gait
Pain that follows dermatomal pattern
Radicular pain
Inherited disorder affecting myelin and axon maitenance / production
Charcot-Marie-Tooth disease