Abstract
The present work was carried out to give complete information about the anatomy and histology of pharynx in the goat which may be helpful for further studies to both under graduate and post graduate studies. The morphological studies of the pharynx entailed the collection of twenty-four heads together with first two cervical vertebrae from apparently healthy adult goats of both sexes from the Giza governorate. The results showed that the pharynx in goat was an irregular funnel shaped structure. It extended from the caudal end of the horizontal lamina of the palatine bone, extended caudoventrally up to the level of the caudal border of the wing of atlas. The pharyngeal fornix was smooth and concave and divided by the septum pharyngis into two deep narrow cavities. The pharyngeal opening of the auditory tube was crescent shaped slit situated at the caudodorsal part of the lateral wall of the nasopharynx. It was covered medially by a thin mucosal fold (salpingo-pharyngeal fold, contained hyaline cartilage in lamina propria). Both the Tonsilla pharyngea and the Tonsilla tubaria observed only microscopically. The oropharynx was short, wide and dilatable. The palatine tonsil was located on the caudal third of the lateral wall of the oropharynx. The pharynx of the goat received its arterial blood supply via the ascending pharyngeal, ascending palatine arteries, and the pharyngeal branches of the cranial thyroid, cranial laryngeal and Rr. musculares of the lingual artery. The soft palate is vascularized through lesser palatine artery, in addition to the branches of the pterygoid artery of the maxillary artery. The results obtained were discussed with the available literature in different animals.
Published Version
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