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Yousefi, Mohammad Hasan. (1395). Anatomical study of the Iranian brown bear’s skull (Ursus arctos): A case report. , 10(3), 237-244. doi: 10.22059/ijvm.2016.58686
Mohammad Hasan Yousefi. "Anatomical study of the Iranian brown bear’s skull (Ursus arctos): A case report". , 10, 3, 1395, 237-244. doi: 10.22059/ijvm.2016.58686
Yousefi, Mohammad Hasan. (1395). 'Anatomical study of the Iranian brown bear’s skull (Ursus arctos): A case report', , 10(3), pp. 237-244. doi: 10.22059/ijvm.2016.58686
Yousefi, Mohammad Hasan. Anatomical study of the Iranian brown bear’s skull (Ursus arctos): A case report. , 1395; 10(3): 237-244. doi: 10.22059/ijvm.2016.58686

Anatomical study of the Iranian brown bear’s skull (Ursus arctos): A case report

Iranian Journal of Veterinary Medicine
مقاله 10، دوره 10، شماره 3، آذر 2016، صفحه 237-244    اصل مقاله (2.63 M)
نوع مقاله: Anatomy- Histology
شناسه دیجیتال (DOI): 10.22059/ijvm.2016.58686
نویسنده
Mohammad Hasan Yousefi*
Department of Anatomy, Faculty of Veterinary Medicine, Semnan University, Semnan, Iran
چکیده
\The Brown bear (Ursus
arctos) is a species at risk of extinction. It is considered the largest
carnivore and lives in northern Iran. Several studies on the structure of skull
have been  accomplished in different
animals. The aim of this study was the inscription of gross anatomical
characteristics of skulls of three Iranian adult male brown bears that were
transferred  to the Anatomical Department
of the Faculty of Veterinary Medicine of Semnan University. After processing,
that included cleaning, degreasing and bleaching, skulls were studied from the
dorsal or frontal, ventral, lateral, rostral, caudal and medial views. The
facial part of the brown bear’s skull from dorsal view was small and the
cranium was seen quadrilateral and larger than the dogs. The facial part of
lacrimal bone and also the optic groove of presphenoid were absent. There was
not articulation between maxillary and nasal bones. The interincisive canal was
present and situated inter palatine processes of incisive bones. The orbital
cavity was small in brown bear. Lacrimal canal was formed by lacrimal and
maxillary bones. The interparietal bone and external sagittal crest in brown
bear were seen as being shorter than the dogs. Tympanic bulla was very small
and jugular foramen rounded. The external acoustic meatus was formed by
squamous and tympanic part of temporal bone. In conclusion, the brown bear’s
skull has different important macroscopic characteristics compared to other
carnivores
کلیدواژه‌ها
Anatomy؛ brown bear؛ skull
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