A. Yes, dogs have sinuses. Maxillary and frontal sinuses are the main ones.
Rhinitis (inflammation of the mucous membranes of the nose) or other damage to the nasal mucous membranes, it is often associated with sinusitis, or inflammation of the lining of the sinuses.
If the nasal passages deteriorate and fail to function properly, a major filtration function is removed. This exposes the lungs to much heavier loads of dust and microorganisms
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