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タイトル: Mobility of the forearm in the raccoon (Procyon lotor), raccoon dog (Nyctereutes procyonoides) and red panda (Ailurus fulgens)
著者: KAMIOKA, Minao
SASAKI, Motoki
YAMADA, Kazutaka
ENDO, Hideki
OISHI, Motoharu
YUHARA, Kazutoshi
TOMIKAWA, Sohei
SUGIMOTO, Miki
OSHIDA, Tatsuo
KONDOH, Daisuke
KITAMURA, Nobuo
佐々木, 基樹
押田, 龍夫
近藤, 大輔
北村, 延夫
キーワード: forearm
raccoon
raccoon dog
red panda
rotation
発行日: 2017
出版者: 日本獣医学会
抄録: The ranges of pronation/supination of forearms in raccoons, raccoon dogs and red pandas were nondestructively examined. Three carcasses of each species were used for CT analysis, and the left forearms were scanned with a CT scanner in two positions: maximal supination and maximal pronation. Scanning data were reconstructed into three-dimensional images, cross-sectional images were extracted at the position that shows the largest area in the distal part of ulna, and then, the centroids of each cross section of the radius and ulna were detected. CT images of two positions were superimposed, by overlapping the outlines of each ulna, and then, the centroids were connected by lines to measure the angle of rotation, as an index of range of mobility. The measurements in each animal were analyzed, using the Tukey–Kramer method. The average angle of rotation was largest in raccoons and smallest in raccoon dogs, and the difference was significant. In the maximally pronated forearm of all species, the posture was almost equal to the usual grounding position with palms touching the ground. Therefore, the present results demonstrate that the forearms of raccoons can supinate to a greater degree from the grounding position with palms on the ground, as compared with those of raccoon dogs and red pandas.
URI: http://ir.obihiro.ac.jp/dspace/handle/10322/4394
ISSN: 1347-7439
0916-7250
出現コレクション:00B01学術雑誌論文

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