Vet Med - Czech, 2009, 54(11):537-542 | DOI: 10.17221/162/2009-VETMED

The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus)

A. Aydin, Z.E. Ozkan, S. Yilmaz, R. Ilgun
Faculty of Veterinary Medicine, Firat University, Elazig, Turkey

In this study, the circulus arteriosus cerebri of the ground squirrel (Spermophilus citellus) was investigated. Five ground squirrels were used as subjects. Coloured latex was injected from the left ventriculi of the hearts of all the squirrels. When the vertebral arteries of two of the animals were ligatured, it was found that there was no internal carotid artery. After careful dissection, the circulus arteriosus cerebri (the circle of Willis) was investigated. The right and left vertebral arteries gave rise to the caudal cerebellar artery before forming the basilar artery. The basilar artery formed the caudal communicans artery that was the caudal part of the circulus arteriosus cerebri on the pontocrural groove (sulcus pontocruralis). The caudal, medial, rostral cerebellar, the common root formed by the caudal cerebral and choroid arteries, the rostral choroid, the rostral and medial cerebral arteries arose from the vertebral, basilar and caudal communicans arteries and dispersed to the cerebrum and cerebellum from caudal to cranial. The termination and the branches of the rostral cerebral artery in ground squirrels varied. It was observed that the internal carotid artery does not supply the circulus arteriosus cerebri in ground squirrels.

Keywords: morphology; circulus arteriosus cerebri; brain; ground squirrel (Spermophilus citellus)

Published: November 30, 2009  Show citation

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Aydin A, Ozkan ZE, Yilmaz S, Ilgun R. The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus). Vet Med - Czech. 2009;54(11):537-542. doi: 10.17221/162/2009-VETMED.
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    References

    1. Aydin A. (2008): The morphology of circulus arteriosus cerebri in the red squirrel (Sciurus vulgaris). Veterinarni Medicina, 53, 272-276. Go to original source...
    2. Aydin A., Yilmaz S., Dinc G., Ozdemir D., Karan M. (2005): The morphology of circulus arteriosus cerebri in the porcupine (Hystrix cristata). Veterinarni Medicina, 50, 131-135. Go to original source...
    3. Aydin A., Yilmaz S., Ozkan Z.E., Ilgun R. (2008): Morphological Investigations on the circulus arteriosus cerebri in Mole-Rats (Spalax Leucodon). Anatomia, Histologia, Embryologia, 37, 219-222. Go to original source... Go to PubMed...
    4. Barone R., Pavaux C., Blin P.C., Cuq P. (1973): Atlas of Rabbit Anatomy. Masson & Cie, Paris. 121-122.
    5. Brehmer A., Beleites B. (1988): The morphology of the circulus arteriosus cerebri of the rabbit and its changes following unilateral ligation of the common carotidartery. (in German). Anatomischer Anzeiger, 167, 297-300.
    6. Brown J.O. (1966): The morphology of circulus arteriosus cerebri in rats. Anatomical Record, 156, 99-106. Go to original source... Go to PubMed...
    7. Cook M.J. (1965): The Anatomy of the Laboratory Mouse. Academic Press, London and New York. 99-100.
    8. Demirsoy A. (1992): Rodentia. The Base Rules of Life. Meteksan Anonim Sirketi, Ankara. 695-729.
    9. Firbas W., Sinzinger H., Schlemmer M. (1973): Circulus arteriosus of the rat, mouse and golden hamster (in German). Zentralblatt fur Veterýnarmedizin, Reihe C, 2, 243-251.
    10. Getty R. (1975): Sisson and Grossman's the Anatomy of the Domestic Animals. 5th ed. W.B. Saunders, Philadelphia. 1611-1620.
    11. Green E.C. (1968): Anatomy of the Rat. Hafner Publishing Company, New York and London. 178-187.
    12. Karol S. (1963): Dictionary of Zoological Terms. Turkish History Institution Press, Ankara. 192-193.
    13. Klachinka J., Nowak E., Szczurkowski A., Kuder T. (2008): Arteries supplying the base of the brain in the Mongolian gerbil (Meriones unguiculatus). Polish Journal of Veterinary Sciences, 11, 295-298.
    14. Kuru M. (1987): Rodentia, The Vertebrata Animals. Ataturk University, Erzurum, Basum. 551-564.
    15. McClure R.C., Dallman M.J., Garret P.G. (1973): Cat Anatomy. Lea and Febiger, Philadelphia. 185-192.
    16. Miller M., Christensen G., Evans H. (1964): Anatomy of the Dog. W.B. Saunders, Philadelphia. 312-316.
    17. Nomina Anatomica Veterinaria (1994): 4th ed. Copyright by the World Association of Veterinary Anatomists. 70-73.
    18. Ocal M.K., Ozer M. (1992): The circulus arteriosus cerebri in the Guinea pig. Annals of Anatomy, 174, 259- 260. Go to original source... Go to PubMed...
    19. Popesko P., Rajtova V., Horak J. (1990): A Colour Atlas of the Anatomy of Small Laboratory Animals. Wolfe Publishing, London. Cun (49), Cav (175).
    20. Szczurkowski A., Kuchinka J., Nowak E., Kuder T. (2007): Topography of arterial circle of the brain in Egyptian spiny mouse (Acomys cahirinus, Desmarest). Anatomia, Histologia, Embryologia, 36, 147-150. Go to original source... Go to PubMed...
    21. Weichert C.K. (1970): The anatomy of the Chordates. 4th ed. McGraw-Hill, London. 500-738.
    22. Wiland C. (1974): Comparative study on structure and variation in basal arteries of the brain in laboratory mouse. Anatomischer Anzeiger, 135, 455-464.

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