Dog: Trachea, head. Tracheal hypoplasia, laryngeal eversion.

Dog: Trachea. Brachycephalic airway syndrome, hypoplastic trachea.

Dog: Lung. Aspiration pneumonia.

Dog: Oral cavity. Brachycephalic airway syndrome, superfluous oral tissue.

Dog: Soft palate, tonsils. Brachycephalic airway syndrome, elongated soft palate and everted tonsils.

Dog: Head. Brachycephalic anatomy, brachygnathia superior.