Laryngeal paralysis
Category:
Nervous system
Description:
aryngeal paralysis in animals is a condition in which the nerves and muscles that move one or both aretynoid cartilages of the larynx cease to function, and instead of opening during vigorous inspiration and closing during swallowing, the aretynoids hang loosely in a somewhat neutral position. This leads to inadequate ventilation during exercise and during thermoregulatory panting as well as incomplete protection of the airway during swallowing. Affected animals thus have reduced tolerance for exercise and heat and an increased risk of aspiration pneumonia. Laryngeal paralysis is fairly common in large breed dogs and is rarely found in cats. It can also occur in horses where it is referred to as roaring, roarer's syndrome, or laryngeal hemiplegia.
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