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    The Segmental Morphometric Properties of the Horse Cervical Spinal Cord: A Study of Cadaver
    (HINDAWI PUBLISHING CORPORATION, 2013) Bahar, Sadullah; Bolat, Durmus; Selcuk, Muhammet Lutfi
    Although the cervical spinal cord (CSC) of the horse has particular importance in diseases of CNS, there is very little information about its segmental morphometry. The objective of the present study was to determine the morphometric features of the CSC segments in the horse and possible relationships among the morphometric features. The segmented CSC from five mature animals was used. Length, weight, diameter, and volume measurements of the segments were performed macroscopically. Lengths and diameters of segments were measured histologically, and area and volume measurements were performed using stereological methods. The length, weight, and volume of the CSC were 61.6 +/- 3.2 cm, 107.2 +/- 10.4 g, and 95.5 +/- 8.3 cm(3), respectively. The length of the segments was increased from C-1 to C-3, while it decreased from C-3 to C-8. The gross section (GS), white matter (WM), grey matter (GM), dorsal horn (DH), and ventral horn (VH) had the largest cross-section areas at C-8. The highest volume was found for the total segment and WM at C-4, GM, DH, and VH at C-7, and the central canal (CC) at C-3. The data obtained not only contribute to the knowledge of the normal anatomy of the CSC but may also provide reference data for veterinary pathologists and clinicians.
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    Stereological and histomorphological assessment of new zealand rabbit kidneys
    (KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2020) Selcuk, Muhammet Lutfi; Colakoglu, Fatma; Tipirdamaz, Saadettin
    The objectives of this study were to determine renal volume, volume ratios in New Zealand rabbits by stereological methods, reveal the histomorphological properties of tubulus proximalis, tubulus distalis, collecting tubule, Henie's loop and number of glomerulus. Besides, it is to investigate the possible differences between the functional subcomponents of the right and left kidneys and the effects of gender discrimination on them. The study was carried out on 9 males and 9 females healthy New Zealand rabbits' kidneys. After weighing kidneys, diameters and lengths were measured with a digital caliper. Total kidney volume and volume fractions of subcomponents of left and right kidneys were estimated by Cavalieri's method. The histological section was taken from the sampled kidneys and kidney structures in the unit area were counted. After all values of each component were expressed as ratios with in kidney, they were analyzed statistically to reveal differences between sexes. There was no statistical difference between the renal densities. The right dorsoventral and mediolateral diameters of the females and males were found to be greater than the left (P<0.05). No statistical difference was found in volume measurements with Archimedes' principle and Cavalieri's method (P>0.05). It was determined that the number of left collecting tubules in female rabbits was higher than males and it was statistically significant (P<0.05). Obtained data by making sexual dimorphism will contribute to the existing anatomical knowledge accumulation.