The present study was investigated the anatomical features of the gastrointestinal tract in the Nile crocodile with detailed information about its arterial blood supply. Four adult Nile crocodiles were used for studying the morphology, histology of digestive tract and its arterial supply. The crocodile was euthanized then fixed in situ with 10% formalin to be dissected. Other fresh specimen was sectioned into small pieces for histological investigation. Two specimens were injected by colored latex neoprene through the heart for arterial study. The gastrointestinal tract composed of long straight esophagus, two sacs stomach, and double looped duodenum occupying pancreas, coiled small intestine and colorectum. The arterial blood supply originated from the celiacomesentric artery which gave up three branches; right gastric, intestinal and gastro duodenal arteries. The mucosal lining of the all digestive tract was simple columnar epithelium varied from secretory to absorptive, lamina propria was mostly fibroelastic connective tissue contains either glands or lymphocytes. Tunica musculosa frequently formed of inner circular and outer longitudinal smooth muscles excluding the fundic part of stomach had middle layer.

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.

Genital anatomical, his tological and Doppler in catsEl-Bably et. Al.,