@article{oai:az.repo.nii.ac.jp:00005251,
 author = {大石, 元治 and 江木, 直子 and 宇根, 有美 and 藤田, 道郎 and 添田, 聡 and 尼崎, 肇 and 市原, 伸恒 and OISHI, Motoharu and EGI, Naoko and UNE, Yumi and FUJITA, Michio and SOETA, Satoshi and AMASAKI, Hajime and ICHIHARA, Nobutsune},
 journal = {麻布大学雑誌, Journal of Azabu University},
 month = {Mar},
 note = {The hands of the American black bear (Ursus americanus), the sun bear (Helarctos malayanus), the polar bear (Ursus maritimus), and the lion (Panthera leo) were dissected and the mass of the intrinsic hand muscles were systematically recorded to explore possible interspecies variation. Muscle mass was divided by the third metacarpal bone size for normalization. The results indicated that the normalized muscle masses of the thenar muscles were larger in the three bears than the lion, and the abductor pollicis muscle was larger in the sun bear than other bears. For the abductor digiti minimi muscle, the normalized muscle mass was larger in the three bears than the lion, but smaller in the polar bear among three bears. One limitation of this study is that here we provided only one specimen for each species, and thus the present results need to be confirmed by examining a larger number of cases in future studies. However, these differences in the intrinsic hand muscles of the four species may reflect adaptation for their different habits., P(論文), 短報, application/pdf, SHORT COMMUNICATION},
 pages = {1--4},
 title = {アメリカグマ（Ursus americanus），マレーグマ（Helarctos malayanus），ホッキョクグマ（Ursus maritimus）における手内筋の筋重量について},
 volume = {29},
 year = {2018}
}