Morphological studies on the pharynx in the goat (capra hircus) / Mariam Fayez Farid Saad ; Supervised Yasser Ramadan Wally, Amr Fekry Elkarmoty , Shayamaa Hussein Mohamed

Thesis (M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Anatomy and Embryology

The present work was carried out to give adequate information on the anatomy and histology of the pharynx in the goat which might be helpful for further studies to both under and post graduate students.Thirty heads from adult apparent healthy goats of both sexes were collected from Giza governorate. The results showed that the pharynx of the goat had an irregular funnel shape. It extended from the caudal end of the horizontal lamina of the palatine bone caudoventrally up to the level of the caudal border of the wing of the atlas.The pharyngeal fornix was smooth, concave and divided by the septum pharyngis into two deep narrow cavities. The pharyngeal opening of the auditory tube was crescent slit like situated at the caudodorsal part of the lateral wall of the nasopharynx. Both the Tonsillapharyngea and the Tonsillatubaria observed microscopically only.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 was vascularized through lesser palatine artery in addition to the branches of the pterygoid artery of the maxillary artery. The blood was drained through the pharyngeal branches of the cranial thyroid, caudal laryngeal, maxillary and pterygoid veins in addition to the lesser palatine vein. The results obtained were discussed with the available literatures in the domestic animals

Issued also as CD