In all animals, the motor unit of skeletal muscle consists of the motor neuron, the neuromuscular junction, and muscle fibers. Muscle dysfunction—such as ataxia, paresis, or paralysis—most commonly originates in which of the following locations?

The nervous system
The neuromuscular junction
The muscle
The skeleton

Arthropathies and Related Disorders in Small Animals

By

Joseph Harari

, MS, DVM, DACVS,

Veterinary Surgeon
Veterinary Surgical Specialists, Spokane, WA

Last full review/revision Nov 2020 | Content last modified Nov 2020

Many arthropathies are developmental, including aseptic necrosis of the femoral head, patellar luxation, osteochondrosis, elbow dysplasia, and hip dysplasia. Other arthropathies are degenerative, infectious or septic, immune-mediated, neoplastic, or traumatic.

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