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Someorphological Studies of the ear of the one- Humped Camel (Camelus Dromedarius)
Faculty
Veterinary Medicine
Year:
2002
Type of Publication:
Theses
Pages:
193
Authors:
Amr Fathy EL-Said Hellal
BibID
10330514
Keywords :
Veterinary Anatomy
Abstract:
The present study was carried out on 15 heads and necks of apparentlyhealthy camels and 30 isolated specimens of camels’ ears of both sexes varyingfrom 4 -5 years.The heads and necks were fixed by injection of a solution formed of(10% formalin, 2% phenol and 1 % glycerin). Only five specimens wereinjected with red latex for studying the arterial blood supply of the external earand two specimens injected with blue latex for studying the venous drainage ofthe external ear.Eight specimens were dissected carefully, five of them were used forinvestigating the auricular cartilages, origin and insertion of the auricularmuscles and three specimens for studying the origin, course, and distribution ofthe nerves supplying the external ear. Photographs and schematic drawings forthe auricular cartilages, muscles, blood and nerve supply of the external earwere plotted.The gross anatomical studies of the middle ear were carried out on 15isolated specimens of camels’ ears. The micromorphological studies of theinternal ear Were performed on another 15 isolated specimens, these collectedspecimens were decalcified in EDTA decalcifying solution and processed till 5-7 urn thick sections were prepared and stained with H&E and Masson’strichrome stains.The obtained results were segregated into three parts as followPart I: - External ear• The cartilages of the external ear of camel were the auricular,scutiform and anular cartilages, the styloid process of the auricular cartilagewas notched medially and laterally, the scutiform cartilage was flattenedquadrilateral with two foramina on its superficial surface. The anular cartilage
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Amr Fathy EL-Said Hellal, "Someorphological Studies of the ear of the one- Humped Camel (Camelus Dromedarius)", 2002
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