Comparative Gross and Surface Morphology of the Oropharynx of the Hooded Crow (Corvus cornix) and the Cattle Egret (Bubulcus ibis) | ||
| Journal of Veterinary Anatomy | ||
| Article 1, Volume 6, Issue 1, April 2013, Pages 1-15 PDF (1.43 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jva.2013.44987 | ||
| Authors | ||
| Eid A. Moussa; Said A. Hassan | ||
| Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt | ||
| Abstract | ||
| Ten adult hooded crow and another ten adult cattle egret were used to study the oropharyngeal cavity mac- ro and microscopically. The oro- pharynx in both birds was a dorso- ventrally flattened tube, presented four openings, choanal and infundibular slits in the roof and glottis and oesophageal opening in the floor. The choanal slit divided into rostral and caudal part in hooded crow while in cattle egret it was undivided. The roof of oropharynx presents infundibular slit in midline. The horny conical papillae were widely distributed in the roof and floor of the oropharynx of hooded crow while in cattle egret it was absent except two rows in the roof of oropharynx. The opening of salivary glands ducts were widely distributed in the roof and floor of the oropharynx of the hooded crow while in cattle egret they were few in number only in the caudal part of the roof of the oropharynx. The microfolds in both birds are present in the roof of the oropharynx but absent in the floor. The cattle egret is characterized by the presence of hills and deep microgrooves in addition to micropits. | ||
| Keywords | ||
| Oropharynx; hooded crow; Cattle Egret | ||
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