A morphological study of the protuberance on the lateral surface of the mandible in primates
| Project/Area Number |
23570284
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical anthropology
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| Research Institution | Nihon University (2012-2014)
Aichi Gakuin University (2011) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAITOH Munetaka 愛知学院大学, 歯学部, 准教授 (20167539)
MATSUNO Masanobu 日本大学, 松戸歯学部, 講師 (10297848)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAI Msanaru 京都大学, 霊長類研究所, 教授 (90252535)
IGARASHI Yuriko 日本大学, 松戸歯学部, 講師 (60277473)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 下顎骨の外側面 / 非ヒト霊長類 / コンピュータ断層撮影法 / 下顎隆起 / 下顎窩 / 緻密骨 / 頬袋 / 下顎骨の力線 / 下顎骨 / 霊長類 / 下顎神経 / 卵円孔 |
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| Outline of Final Research Achievements |
In order to clarify the morphological characteristics and function of the protuberance and/or fossa on the lateral surface of the mandible, we examined 778 mandibles of non-human primates. Both protuberance and fossa were found in Macaca, Chlorocebus, and Cercocebus. The protuberance was composed of compact bone, and was similar to the mandibular torus in humans. A well-developed protuberance was cloth to the orifice of buccal pouch. A deep and large fossa was found in all individuals of Papio, Theropithecus, and Mandrillus, and the bone width was thin in the center of the fossa. The fossa extended from the third premolar to second molar region, and the deepest area was the first molar region. These concavo-convex structures have some biological functions and represent an adaptive change for mastication.
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Report
(5 results)
Research Products
(10 results)
