将侧面脚部过程的脊椎骨结构与人脚骨的其他区域进行比较
Manisha C Koneru1, Christine M Harper1
1Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, New Jersey, USA.
Anatomical record (Hoboken, N.J. : 2007)
|February 15, 2024
概括
骨的侧面脚部过程 (LPP) 与下骨具有相同的承重特征,这表明在走路时传递力时具有类似的功能. 它独特的脊椎结构可能会增强表面积的作用.
科学领域:
- 人类骨解剖学 人类骨解剖学
- 生物力学 生物力学
- 古人类学古人类学.
背景情况:
- 脚 (脚骨) 对于两足动物的运动和承重至关重要.
- 侧足过程 (LPP) 的功能作用,这是骨的一部分,仍然不太了解.
- 了解形适应提供了对人类进化和形式-功能关系的见解.
研究的目的:
- 通过分析其内部状骨架构来研究侧面脚部过程 (LPP) 的功能作用.
- 为了比较LPP的椎间板形态与骨的其他区域,特别是下侧结核和关节表面.
主要方法:
- 微型计算机断层扫描 (micro-CT) 扫描了20名人类.
- 球体波分析以确定每个骨内的251个感兴趣的体积 (VOI).
- 计算每个VOI.的轨道状厚度 (Tb.Th),间距 (Tb.Sp),异质度 (DA) 和骨体积分数 (BV/TV).
主要成果:
- LPP在骨体积分数 (BV/TV) 和异构度 (DA) 方面与下侧结骨相似,支持其在承重方面的作用.
- 这种LPP与下层结核在轨道结核厚度 (Tb.Th) 和间距 (Tb.Sp) 上显著不同.
- 所有测量到的椎间盘参数在LPP和关节关节表面之间有显著的差异.
结论:
- 很可能LPP的功能是作为一个承重结构,可能传递力类似于下层结核.
- 由于LPP的独特的轨迹结构,带有更薄,更间隔的轨迹,可以优化相对于其尺寸的内部表面积.
- 脚骨中的状体形态非常专业,可以满足不同的功能需求,包括通过关节传递重量,而不是直接地力冲击.
相关概念视频
Spongy Bone
4.4K
All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
4.4K
Ankle Joint
1.6K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
1.6K
Bones of the Lower Limb: Tibia and Fibula
3.3K
The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
3.3K
Compact Bone
11.6K
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
11.6K
Muscles of the Leg that Move the Foot and Toes
1.5K
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
1.5K
Bone Structure
48.4K
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
48.4K


