مطالعه آناتومی و بافت‌شناسی غده اشکی در شترمرغ بالغ

نویسندگان

1 دانش آموخته دانشکده دامپزشکی دانشگاه فردوسی مشهد، مشهد، ایران

2 گروه علوم پایه دانشکده دامپزشکی دانشگاه فردوسی مشهد، مشهد، ایران

چکیده

در این تحقیق خصوصیات مورفولوژی و بافت شناسی غده اشکی چپ و راست 10 قطعه شترمرغ بالغ مورد بررسی قرار گرفت پس از بررسی توپوگرافی غده و اندازه گیری ابعاد آن،مقاطع بافتی تهیه و با روش های متداول بافت شناسی رنگ آمیزی شدند.غده اشکی به رنگ قهوه ای تیره متمایل به سیاه و به صورت مورب در سطح پشتی جانبی حدقه قرار داشت.میانگین طول این غده در سمت چپ 2.06+_15.95 میلیمتر و در سمت راست 2.25+_16.80 میلیمتر تعیین گردید.میانگین عرض این غده در سمت چپ 0.66+_6.15 میلیمتر و در سمت راست 0.58+_6.25 میلیمتر تعیین گردید. از نظر آماری اختلاف معنی داری در پارامترهای اندازه گیری شده در بین غدد اشکی چپ و راست وجود نداشت.از نظر بافت شناسی شکل واحدهای ترشحی این غده در شترمرغ لوله ای آلوئلی بود و سلولهای بافت پوششی غدد از نوع استوانه ای ساده بلند و نحوه ترشح آنها آپوکرین و نوع ترشحات موکوز تعیین گردید.غده اشکی شترمرغ از نظر توپوگرافی مشابه سایر پرندگان بود و سلولهای واحدهای ترشحی و مجاری غده اشکی با رنگ آمیزی های اسید پریودیک شیف و آلسین بلو واکنش مثبت نشان دادند.

عنوان مقاله [English]

Anatomical and histological study of lacrimal gland in adult ostrich (Struthio camelus)

نویسندگان [English]

  • S Frahmand 1
  • A.A Mohammadpour 2
1 Grajuated from Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
2 Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad,Iran
چکیده [English]

In this research, morphology and histology of the left and right lacrimal glands of ten adult ostrich were carefully studied. After the topographical study of the glands and measuring the dimension of them, tissue sections were prepared and stained by current histology. Results revealed that in ostrich, lacrimal gland was dark brown to black color and was located obliquely in dorsolateral part of orbit. The mean length of lacrimal gland was 15.95 ± 2.06mm and 16.80 ± 2.25mm in left and right side respectively. The mean width of it was 6.15 ± 0.66mm and 6.25 ± 0.58mm in left and right side respectively. There was no significant difference between length, thickness, weight and width of left and right lacrimal glands. In histological results, sceretory units of lacrimal gland were tubuloalveolar and mucous type. Epithelial cells were high simple columnar and mode of secretion was apocrine. In ostrich, topography of lacrimal gland was
similar to other birds and the glandular cells were positive in periodic acid shiff and alcian blue stains.

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