Computerized Tomography, Radiological and Morphological Features on the Skull of Egyptian Owl (Bubo ascalaphus)

Abstract

This study was applied on the Skull of Egyptian Owls, using X-ray and computed tomography (CT) to recognize possible clinical affections of skull and provide clear anatomical data through anatomical dissection. The specimens of six carcasses were carried out to department of anatomy, Faculty of veterinary medicine, Cairo University. Four heads were dissected for morphological study and X-ray, other two specimens accommodated to CT. The skull of owl constructed mainly from the neurocranium, viscerocranium and the mandible. The cranial bone used for housing the brain; comprised of frontal, parietal, occipital, sphenoid and temporal bone while the bones of face formed of nasal, quadrate bone, zygomatic, palatine, vomer, premaxillary, maxillary and ethmoid. The cranium and viscerocranium demarcated from each other by orbital cavities. The mandible composed of five ill distinguished bones; dental, splenial, angular, supra angular, and the articular.

Anatomical and morphometric studies on the axial skeleton of ostrich (Struthio camelus)

“…The nasal bone had frontal, lateral nasal, and Premaxillary processes, in contrary, the nasal bone had frontal process, premaxillary process and maxillary process in chicken (Tahon et al 2013). In present study, the lacrimal bones were wide comma shaped bones forming the rostral boundary of the orbit, per-contra in owl, the lacrimal bone was a large triangular bone (Sary and Ibrahium 2022). The jugal process of lacrimal bone was bifid caudoventral to join the jugal bone in grey heron (Bavdek et al 2017) similar to our findings.…”

“…Cleaning the bones: The maceration process was enhanced by boiling the specimens for 2 h in 5% potassium hydroxide (KOH) (Tahon et al 2013) and(Kassem et al 2023), then left for 5 days in the open air after cleaning. Only the skull was macerated by soaking it in hot water with 5% sodium bicarbonate for 30 min (Sary and Ibrahium 2022) and then washed with water.…”