Morphological relationship between food・foodintake and the masticatory apparatus in Primates

灵长类食物·食物摄入与咀嚼器官的形态关系

• 批准号: 08640907
• 负责人: SHIGEHARA Nobuo
• 金额: $ 0.96万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08640907/
• 关键词: Primates; Masticatory apparatus; oral volume; Palate; food; lingua; 口蓋; 咀嚼; 機能形態

The purpose of this study is to clarify the relationship between food/food habit and oral volume in primates. Adult dry skeletons held in Dokkyo University School of Medicine, Primate Research Institute of Kyoto University, and Japan Monkey Center were used here. Becouse the capacity of oral cavity decrease with teeth attrition, materials with small tooth attrition are used. After occlusion, upper and lower dental arches were covered with thin dental paraffin from outside. Mandibular base is also covered with thick dental wax. The shot was used to measure the capacity of the oral cavity. Observation of the morphology of the palate was also carried out in primates and in other mammals. The data was analyzed using the program for statistics (Statview). The Japanese macaque was used to examine an intraspecific variation.An intraspecific variation was large in the oral volume of the Japanese macaques. In primates, the oral volume showed high correlation coefficient with maximum cranial length, even in baboons which show extreme prognathism. Consequently, the projection of the palate in Primates does not correlate directly with an increase in oral volume. The folivorous primates have deep palate, but they have slightly narrow palate compared with those in other primates. Homo and neanderthals have different oral cavity form. This may depends on their ability in speech. Tthe palate width in these species are relatively wider than those in other primates.

这项研究的目的是阐明灵长类动物的食物/食物习惯与口服体积之间的关系。在这里使用了在Dokkyo大学医学院，京都大学灵长类动物研究所和日本猴子中心举行的成人干骨骼。因为随着牙齿的磨损而口腔降低的能力，使用牙齿磨损少的材料。闭塞后，上和下牙拱形覆盖在外部薄薄的牙皮石蜡。下颌底座也覆盖着厚牙蜡。该镜头用于测量口腔的容量。在灵长类动物和其他哺乳动物中也进行了对味觉形态的观察。使用统计程序（StatView）分析数据。日本猕猴用于检查种内变异。种内变异的口服体积很大。在灵长类动物中，口服体积与最大颅长相关系数，即使在显示出极端预后的狒狒中也是如此。因此，味蕾在灵长类动物中的投影与口服体积的增加直接相关。叶状灵长类动物的口感很深，但与其他灵长类动物相比，它们的口感略微狭窄。同性恋和尼安德特人的口腔形式不同。这可能取决于他们在语音中的能力。这些物种中的口感宽度比其他灵长类动物中的宽度相对宽。