A Macroanatomic and Morphometric Study on Ossicula Auditus in Male Hemshin Sheep

Abstract

This study was carried out to determine ossicula auditus morphometry and macro anatomy of male Hemshin sheep. For this purpose ten adult male sheep were used. The sheep heads were obtained from the local slaughterhouse of Ardanuç district of Artvin province. First, the skulls were cleaned from the muscle and skin. Then, the external ear canal (Meatus acusticus externus) was followed ear ossicles located in the cavum tympani was removed by dissecting. Measurements were taken from 14 different points on the ossicula auditus. In male Hemshin sheep ossicula auditus consists of three bones, os malleus, os incus and os stapes, os lenticulare was found as a processus lenticularis on os incus. The presence of processus lateralis, processus rostralis, and processus muscularis was observed on os malleus. The length of os malleus, os incus and os stapes were measured as right/left 7.00 ± 0.76 / 6.58 ± 0.085 mm, 2.89 ± 0.3 / 2.83 ± 0.68 mm and 1.76 ± 0.13 / 1.88 ± 0.17 mm respectively. The width of the corpus incudis was measured as right/left 2.39 ± 0.40, 2.16 ± 0.40 mm, and the width of the base stapedis was 1.25 ± 0.17/ 1.28 ± 0.15 mm, respectively. Statistical analysis showed no significant difference between right and left ossicula auditus (P> 0.05). As a result, a macro anatomical and morphometric study was performed on ossicula auditus of male Hemshin sheep which is not included in the literature. The findings obtained from the study were included in the literature.

Keywords

• Anatomy,Ear Ossicles,Sheep.

Erkek Hemşin Koyununda Ossicula Auditus Üzerinde Makroanatomik ve Morfometrik Bir Çalışma

Öz

Bu çalışma, erkek Hemşin koyunlarının ossicula auditus morfometrisini ve makro anatomisini belirlemek için yapıldı. Bu amaçla 10 adet yetişkin erkek Hemşin koyunu başı kullanıldı. Koyun başları Artvin ili Ardanuç ilçesi belediye mezbahanesinden temin edildi. Çalışma için ilk önce kafatasları deri ve kaba etlerinden temizlendi. Daha sonra dış kulak yolu (meatus acusticus externus) takip edilerek cavum tympani de yer alan kulak kemikçikleri diseksiyonla çıkartıldı. Kulak kemikçikleri üzerinde toplamda 14 farklı nokta arasında ölçümler yapıldı. Erkek Hemşin koyununda ossicula auditus'un malleus, incus ve stapes olmak üzere üç kemikten oluştuğu görüldü. Os lenticulare'nin incus üzerinde processus lenticularis şeklinde bulunduğu gözlendi. Malleus üzerinde procesus lateralis, procesus rostralis ve procesus muscularis’in varlığı görüldü. İncus‘un gövdesinden crus longum ve crus breve’nin ayrıldığı görüldü. Malleus uzunluğu sırasıyla sağ/sol 7.00±0,76 /6.58±0,085 mm, incus uzunluğu 2.89±0.3/2.83±0.68 mm, stapes uzunluğu 1.76±0.13/1.88±0.17 mm olarak analiz edildi. Corpus incudis genişliği sırasıyla sağ/ sol 2.39±0.40, 2.16±0.40 mm ve basis stapedis’in genişliği 1.25±0.17, 1.28±0.15 mm olarak analiz edildi. İstatistiksel analiz sonucunda sağ ve sol kulak kemikçikleri arasında anlamlı bir fark olmadığı gözlendi (P>0.05). Sonuç olarak literatürde yer edinmeyen erkek Hemşin koyunu ossicula auditus’u üzerinde makro anatomik ve morfometrik bir çalışma yapıldı. Çalışma sonucu elde edilen bulgular literatür’e kazandırıldı.

Anahtar Kelimeler

• Anatomi,Koyun,Kulak Kemikçikleri

Kaynakça

1. 1. Akçapınar H., 2000. Sheep Breeding. İsmat typography 2. Edition Ankara. 2. König HE., Liebich HG., 2007. Veterinary Anatomy of Domestic Mammals: Textbook and Color Atlas. 3rd ed., Schattauer Co, Stuttgart, Germany. 3. Botti M., Secci F., Ragionieri L., Dessole AA., Acone F., 2006. Auditory ossicles in the ruminants: Comparative morphological analysis with the analogues formations of horse. Ann. Fac. Medic. Vet. di Parma, 26, 91-96. 4. Hebel R., Stromberg MW., 1986. Anatomy and Embryology of Laboratory Rat, 1st ed. Biomed and Verlag, New York. 5. Huang GT., Rosowski JJ., Flandermeyer DT., Lynch TJ., Peake WT., 1996. The middle ear of a lion: Comparison of the structure and function to domestic cat. J. Acoust. Soc. Am., 101, 1532-1549. 6. Kristensen F., Jacobsen JOG., Eriksen T., 1996. Otology in Cats and Dogs, 1st edition. LEO, Stockholm. 7. Masuda Y., Honjo H., Naito M., Ogura Y., 1986. Normal development of the middle ear in the mouse: a light microscopic study of serial sections. Acta Medica 40, 201-207. 8. Miller ME., 1964. Anatomy of the Dog, 1st edn. W. B. And Sounders, Philadelphia. 9. Onar V., Mutuş R., Kahvecioğlu KO., 1997. Morphometric analysis of the foramen magnum in German Shepherd dogs (Alsatians). Ann Anat, 179, 563-568. 10. Bozkurt EU., Düzler A., Özgel Ö., Kürtül İ., 2002. Morphometric and morphological features of the bones of the wing in Bald Ibis. Indian Vet J, 79, 470-476. 11. Onar V., Belli O., Owen PR., 2005. Morphometric examination of Red Fox (Vulpes vulpes) from the Van-Yoncatepe necropolis in Eastern Anatolia. Int J Morphol, 23, 253-260. 12. Özcan S., Aksoy G., Kürtül İ., Aslan K., Özüdoğru Z., 2010. A comparative morphometric study on the skull of the Tuj and Morkaraman Sheep. Kafkas Univ Vet Fak Derg, 16, 111-114. 13. Demiraslan Y., Gülbaz F., Özcan S., Dayan MO., Akbulut Y., 2014. Morphometric analysis of the mandible of Tuj and Morkaraman sheep. J Vet Anat, 7, 75-86. 14. Gurbuz İ., Demiraslan Y., Aslan K., 2015. Morphometric analysis of the skull of New Zealand Rabbit (Oryctolagus cuniculus L.) according to gender. AJAVS, 1, 27-32. 15. Dalga S., Aslan K., 2017. The morphometric study on Hemshin sheep mandible. Atatürk Üniv Vet Bil Derg, 12, 22-27. 16. Rohlf FJ., Marcus LF., 1993. A revolution in morphometrics Trendsecol. Evol, 8, 129-132. 17. Wehausen JD., Ramey RR., 2000. Cranial morphometric and evolutionary relation ships in the nothern range of Ovis canadensis. J Mammal, 81, 145-161. 18. Kürtül İ., Demirkan AÇ., Bozkurt EU., Dursun N., 2003. Detailed subgross morphometric study on the auditory ossicles of the New Zealand Rabbit. Anat Histol Embryol. 32, 249-252. 19. Nomina Anatomica Veterinaria 2012. International Comitte on Veterinary Gross Anatomical Nomenclature: General Assembly of the World Association of Veterinary Anatomists., 5thed, Gent, Published by the Editorial Committee Hannover (Germany), Columbia, MO (U.S.A.), Ghent (Belgium), Sapporo (Japan). 20. Mohammadpour AA., 2011. Morphology and morphometrical study of hamster middle ear bones. IJVR, 12, 121-126. 21. Demiraslan Y., Gurbuz I., Aslan K., 2015. A Macroanatomic and morphometric study on Auditory ossicles in Donkey (Equus asinus). İstanbul Üniv., Vet. Fak. Derg, 41(2), 151-154. 22. Getty R., 1975. Sisson and Grossman’s The Anatomy of the Domestic Animals. Volume 1, fifth edition, WB, Saunders Company, Philadelphia, USA. 23. Nickel R., Schummer A., Seiferle E., 1986. The Anatomy of the Domestic Animals Volume 1. Verlag Paul Parey, Berlin, Germany. 24. Gurbuz İ., Aykut M., Dayan MO., Aslan K., 2016. Morphometric analysis of ossicula auditus in Malakan horses. Eurasian J Vet Sci, 32, 204-207. 25. Gurbuz İ., Demiraslan Y., Kırbaş G., Aslan K., 2018. The morphometric and stereologic investigation of metapodium in male Hemshin sheep. MAKÜ Sağ Bil Enst Derg 6, 1-14. 26. Gurbuz İ., Demiraslan Y., Sarı EK., Aslan K., 2017. Morphologic and morphometric structure and arterial vascularization of glandula interdigitalis in Male Hemshin sheep. Kafkas Univ Vet Fak Derg, 23, 242-246.