Наукові горизонти (Jul 2020)
FEATURES OF PANCREAS STRUCTURE IN CLINICALLY HEALTHY DOGS AND CATS
Abstract
This paper deals with the comparative characteristics of macro and macro microscopic structure of the pancreas in clinically healthy adults dogs and cats. Anatomical, histological, morphometric and statistical methods of research. The pancreas is the second largest gland of the digestive system. Her the exocrine portion provides adequate digestion. Endocrine part – regulates the metabolism of carbohydrates, lipids and proteins. This is a big chubby parenchymal organ with complex tubular-alveolar structure. Stroma the pancreas of the test animals consists of a capsule, interparticular, inter-medial connective tissue section. The analysis of organometric studies shows that it is absolute and relative the weight of the pancreas in dogs is 29.90±2.80 g and 0.21±0.02%, in cats, respectively – 8.96±0.98 g and 0.38±0.06%. Bet length and width left, middle, right pancreas in pubescent dogs respectively equal to 35.11±1.45; 3.63±0.22; 2.82±0.24; 2.64±0.21 cm. In cats such parameters are respectively 16.18±0.97; 1.35±0.17; 1.08±0.08; 0.97±0.09 cm. The microscopic structure of the pancreas of dogs and cats occupies the main part of the exocrine (98.56±0.06% in dogs and 97.88±0.05% in cats) and the rest endocrine (1.44±0.06% and 2.12±0.05 %) parenchyma of the software, respectively. Her the structural unit is acinuses, which are tightly spaced and not defined orientation. Cells of acini are mainly pyramidal in shape. Nuclei pancreatocytes are rounded with distinct large nuclei. Endocrine pancreatic function is performed by the islands of Langerhans, which do not have of their own capsule, so they are separated from the acini by only a small layer reticular tissue. Morphometric studies have shown that the area is exocrine parts of the pancreas in dogs per unit (approx. 16, vol. 8) is 445044±312.81 μm2 (98.56±0.06 %). Cats have this figure significantly (Р<0.05) decreases and accordingly equals 431825±144.18 μm2 (97.88±0.05%). The endocrine part of the parenchyma of the gland in dogs occupies 6559.80±311.44 µm or 1.44±0.06% per unit area (approx. 16, vol. 8), and in cats, respectively – 6894.87±312.12 μm or 2.12±0.05%. The acinuses are mainly rounded in dogs and elongated in cats and occupy the bulk of the parenchyma of the organ. Their diameter is in dogs is 36.60±0.12 μm, in cats – 28.11±0.11 μm. The islands of Langerhans are often rounded in diameter dogs is 58.08±5.79 μm, which is 1.21 times less than cats (70.20±2.48 μm)
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