Sincaplarda (Sciurus vulgaris) papilla vallata'nın Makroskobik ve ışık mikroskobik yapısı

Bu çalışma, sincaplarda (Sciurus vulgaris) papilla vallata’nın makroskobik ve ışık mikroskobik yapısını incelemek amacıyla yapılmıştır. Çalışmada 10 adet ağaç sincabı kullanıldı. Makroskobik olarak sincap dili nispeten uzun ve dardı. Dil 2.75±1.7 cm uzunluğunda ve 0.75±1.2 cm genişliğindeydi. Sincap dilinde papilla fungiformis ve papilla vallata olmak üzere 2 çeşit tat papillası bulunmaktaydı. Sincapta dilin arka kısmında, gövdesi ile kök kısmı arasında, üst yüzde etrafı derin bir hendekle çevrili üç adet papilla vallata görüldü. Bu papillalardan ortadaki daha geride olup, ters V şeklinde dizilmişlerdi. Papilla vallata çok katlı yassı bir epitelle örtülüydü. Tat tomurcukları hendeğin sadece iç duvarında ve alt yarımında intraepiteliyal olarak yer almaktaydı ve genellikle her duvarda ortalama 4 adet bulunmaktaydı. Papilla vallata’da toplam 278 adet tat tomurcuğu sayıldı. Hendek duvar yüzey alanı da 0.58 mm² olarak hesaplandı.

Macroscopic and light microscopic structure of gustatory papillae in squirrels (Sciurus vulgaris)

This study was carried out to examine macroscopic and light microscopic structure of vallatae papillae in squirrels. In this study, 10 tree squirrels were used (5 male and 5 female). Macroscopically, squirrel tongue was observed relatively long and narrow. The tongue was 2.75±1.7 cm in lenght and 0.75±1.2 cm in wide. There were two types of taste papillae in squirrel tongue. These were papillae fungiformes and papillae vallatae. In squirrel, at the posterior part of the tongue, between the body and the root, 3 vallatae papillae was observed surrounded by a deep ditch. These three papillae were positioned in shape of Λ. Such that; The one in the middle was located at the back of the other two. Papillae vallatae were covered with a strafied squamous epithelium. Taste buds were located intraepitelially only on the inside wall and on the bottom-half of the ditch. And they were generally counted to be only 4 on each wall. In totally, it was counted 278 taste buds in vallata papilla. Ditch wall surface area was calculated to be 0.58 mm².

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1. Kinnamon C J, Taylor B J, Delay R J, Roper S D. Ultrastructure of mouse vallate taste buds. I. Taste cells and their associated synapses. J Comp Neurol 1985; 235: 48-60.
2. Miller I J, Smith D V. Quantitative taste bud distribution in the hamster. Physiol Behav 1984; 32(2): 275-285.
3. Toyoshima K, Shımamura A. The occurrence of ciliated and mucous cells in the peripapillary trench of the rat tongue. Anat Rec 1979; 195: 301-310.
4. Watanabe I, Utiyama C, Koga L Y, Motoyama A A, Kobayashi K, Lopes R A, König B. Scanning electron microscopy study of the interface epithelium-connective tissue surface of the lingual mucosa in calomys callosus. Ann Anat 1997; 179: 45-48.
5. Zalevski A A. Regeneration of taste buds in the lingual epithelium after excision of the vallata papilla. Exper Neurol 1970; 26: 621-629.
6. Kubota K, Fukuda N, Asakura S. Comparative anatomical and neurohistological observations on the tongue of the porcupine (Hystrix cristata). Anat Rec 1966; 155: 261-268.
7. Emura S, Tamada A, Hoyokowa D, Chen H, Jamali M, Taguchi H, Shoumura S. SEM Study on the dorsal lingual surface of the Flying Squirrel. (Petauirsta leucogenys). Ann Anat 1999; 181(5): 495-498.
8. Krause W J, Cutts J H. Morphological observations on the papillae of the opossum tongue. Acta Anat 1982; 113: 159- 168.
9. Kubota K, Togowa S. Comparative anatomical and neurohistological observations on the tongue of japanese dormouse (glirus Japonicus). Anat Rec 1966; 154: 545- 552.
10. Iwasaki S, Miyata K, Kobayashi K. The surface structure of the dorsal epithelium of tongue in the mouse. Acta Anat Nipp 1987; 62(2): 69-76.
11. Oakley B. Reformation of taste buds by crossed sensory nerves in rat's tongue. Acta Physiol Scand 1970; 79: 88-94.
12. Whiteside B. Nerve overlap in the gustatory apparatus of the rat. J Comp Neurol 1927; 44: 363-377.
13. Toprak B. Mouse’de tat papillalarının postnatal gelişimi üzerine Sem ve Işık Mikroskobik İncelemeler, Doktora Tezi, Elazığ: Fırat Üniversitesi, Sağlık Bilimleri Enstitüsü, 2002.
14. Agungpriyono S, Yamado J, Kitamura N, Nisa C, Sigit K, Yamamoto Y. Morphology of the dorsal lingual papillae in the lesser mouse deer, Tragulus javanicus. J Anat 1995; 187: 635- 640.
15. Tanyolaç A. Sindirim Sistemi. Özel Histoloji. Ankara: Yorum Basın Yayın Sanayi, 1993.
16. Smith D V, Miller Jr. I J. Taste bud development in hamster vallate and foliate papillae. Ann N Y Acad Sci 1987; 510: 632-634.
17. Miller I J, Smith D V. Proliferation of taste buds in the foliate and vallate papillae of postnatal hamsters. Growth Dev Aging 1988; 52: 123-131.
18. State F A, Bowden R E M. Innervation and cholinesterase activity of the developing taste buds in the circumvallate papilla of the mouse. J Anat 1974; 118(2): 211-221.
19. Kinnamon C J, Shermon T A, Roper S D. Ultrastructure of mouse vallate taste buds: III. Patterns of Synaptic Connectivity. J Comp Neurol 1988; 270: 1-10.
20. Yılmaz S, Dinç G, Aydın A, Girgin A Ratlarda papilla vallata ve tat tomurcuklarının postnatal mikrometrik değişimleri ve gelişimi. Tr J Vet Anim Sci 1995; 19: 193-198.
21. Miller R L, Chaudry A P. Comparative ultrastructural of vallata, foliate and fungiform taste buds of golden Syrian hamster. Acta Anat 1976; 95: 75-92.
22. Mistretta C M, Baum B J. Quantitative study of taste buds in fungiform and circumvallate papillae of young and aged rats. J Anat 1984; 138: 323-332.
23. Harada S, Yamaguchi K, Kanemaru N, Kasahara Y. Maturation of taste buds on the soft palate of the postnatal rat. Physiol Behav 2000; 68: 333-339.
24. Hosley M A, Oakley B. Postnatal development of the vallata papilla and taste buds in rats. Anat Rec 1987; 218: 216-222.
25. Cano J, Roza C, Rodriguez-Echandia E L. Effects of selective removal of the salivary glands on taste bud cells in the vallate papilla of the rat. Experientia 1978; 34: 1290-1291.
26. Gude W. D, Cosgrove G E, Hirsch G P. Digestive System. Histological Atlas of the Laboratory Mouse. New York and London: Plenum Press 1982: 17-18.
27. Yamaguchi K, Harada S, Kanemoru N, Kasahara Y. Age-related alteration of taste bud distribution in the commen marmoset. Chem Senses 2001; 26: 1-6.
28. Beidler L M, Smallman R L. Renewal of cells with taste buds. J Cell Biol 1965; 27: 263-272.
29. Yoshie S, Wakasugi C, Teraki Y, Fujita T. Fine structure of the taste bud in guinea pigs. I. cell characterization and innervation patterns. Arch Histol Cytol 1990; 53(1): 103-119.
30. Kanazowa H, Fine structure of the canine taste bud with special reference to gustatory cell functions. Arch Histol Cytol. 1993; 56(5): 533-548.
31. Nomina Anatomica Veterinaria: Fourth ed. Prepared by the International Commitee on Veterinary Gross Anatomical Nomenclature and Authorized by the eighteenth general Assembly of the World Association of Veterinary Anatomists. Gent (Belgium); 1994.
32. Nomina Histologica Veterinaria: Revised by the International Commitee on Veterinary Gross Anatomical Nomenclature and Authorized by the eighteenth general Assembly of the World Association of Veterinary Anatomists. Gent (Belgium); 1994.
33. Luna L G. Manuel of Histologic Staining Methods of the Armed Forces Institute of Pathology. 3rd Edition, Toronto, London: Mc. Graw- Hill Book Company, 1968.
34. Mistretta C M, Goosens K T A, Forinos I, Reacardt L F. Alterions in size, number and morphology of gustatory papillae and taste buds in BDNF null mutant mice demonstrata neurol dependence of developing taste organs. J Comp Neurol 1999; 409: 13-24.
35. Utiyama C, Watanabe I, König B, Koga L Y, Semprini M, Tedesco R C. Scanning electron microscopic study of the dorsal surface of the tongue of calomys callosus mouse. Ann Anat 1995; 177: 569-572.
36. Iwasaki S, Miyata K, Kobayashi K. Scanning electron microscopic study of the dorsal lingual surface of the squirrel monkey. Acta Anat 1988; 132: 225-229.
37. Dmitrieva N A. Histogenesis of the taste buds of the vallate papilla in the rat in the postnatal stages of development. Tsiologia 1986; 28(7): 745-748