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PHT2162 Unit 5 Exam Questions With Correct Answers £9.62
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PHT2162 Unit 5 Exam Questions With Correct Answers

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©BRAINBARTER EXAM SOLUTIONS 2024/2025 ALL RIGHTS RESERVED. 1 | P a g e PHT2162 Unit 5 Exam Questions With Correct Answers Nerve Anatomy - answerNeurons have axons & dendrites Endoneurium fascicle perineurium nerve epineurium endoneurium - answerCovering the neuron fascicle - answerBund...

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  • December 3, 2024
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©BRAINBARTER EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.




PHT2162 Unit 5 Exam Questions With
Correct Answers

Nerve Anatomy - answer✔Neurons have axons & dendrites


Endoneurium


fascicle


perineurium


nerve


epineurium


endoneurium - answer✔Covering the neuron


fascicle - answer✔Bundles of neurons


perineurium - answer✔Covering the individual fascicle is the


Nerve - answer✔Bundles of fascicles and blood vessels make a


epineurium - answer✔Covering the nerve


Peripheral Nerve Injury - "Seddon's Classifications" - answer✔Neurapraxia:


Axontmesis:

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, ©BRAINBARTER EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
Neurotmesis:


Neurapraxia: - answer✔o Mild nerve stretch or contusion


o Focal conduction block of message


o No Wallerian degeneration


o No disruption in myelin sheath


o Epineurium, perineurium, endoneurium intact


o Prognosis excellent; full recovery


o EX: foot falls asleep, hitting funny bone


Axontmesis: - answer✔* tmesis means cut


o Injury to neuron that destroys the axon but does not do damage to the other supporting

structures of the cell, making regeneration possible. Often caused by prolonged or severe

compression (crush trauma). Wallerian degeneration occurs.


Wallerian degeneration - answer✔Injury to axon and the myelin sheath starts to degenerate

and unravel everything distal to the lesion


Axons die and the schwann cells and the endoneurium stay in place


Wallerian Regeneration - answer✔Axons in the proximal segment regrow into the distal,

denervated segment.


Growth occurs at a rate of about 1 inch a month

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