34. LMN lesions Flashcards
1
Q
What is lower motor neuron lesion?
A
A lesion affecting nerve fibers traveling from the ventral horn or ant. gray column of the spinal cord to the relevant muscle(s).
2
Q
Causes
A
Spinal cord injury, motor neuron disease, Poliomyelitis
3
Q
Signs and symptoms
A
Muscle paresis or paralysis (flaccid Fibrillations Fasciculations Hypotonia or atonia Hyporeflexia
4
Q
Pathway
A
Anterior horn cells in spinal cord→nerve roots→nerve plexus →peripheral nerves
