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Fibrous tissue on the tibia plateau of the kangaroo. A theory on the pressure absorption of joint surfaces

Dr.LinZhen 添加于 2010-5-28 19:24 | 1346 次阅读 | 0 个评论

作者
Fuss FK
摘要
The central part of the articular surface on the tibia plateau of Macropus agilis consists of fibrous cartilage of soft consistency and the fiber arrangement is macroscopically visible. The peripheral portions of the plateau are covered by hyaline cartilage but do not communicate with the hyaline articular surfaces of the femur, as they are covered by the menisci. The fibrous cartilage covering of the tibia plateau is a compliant or readily deformed pad that could serve the function of deforming enough under high joint loads to allow surrounding regions of the articular cartilage to share in carrying those loads, thereby magnifying the articular contact surface and decreasing the magnitude of the peak unit loads in the region of the fibrous tissue pad. This pressure-absorbing mechanism represents the evolutionary response to the higher articular stress resulting from kangaroo locomotion.
详细资料
- 关键词: Animals; Biomechanics; Cartilage, Articular/cytology; Female; Joints/*physiology; Macropodidae/*anatomy & histology; Male; Models, Biological; Pressure; Tibia/*anatomy & histology/cytology
- 文献种类:期刊
- 期刊名称: The Anatomical Record
- 期刊缩写: Anat Rec
- 期卷页: 1994年第238卷第3期 297-303页
- 地址: Institute of Anatomy (1st Department), University of Vienna, Austria
- ISBN: 0003-276X
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软骨
标签

kangaroo
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