相关实验视频
Updated: May 29, 2026

09:14
A Mouse Model of Ankle-Subtalar Complex Joint Instability
Published on: October 28, 2022
澳大利亚白座 (Australopithecus sediba) 的脚和脚
Bernhard Zipfel1, Jeremy M DeSilva, Robert S Kidd
1Institute for Human Evolution, University of the Witwatersrand, Post Office Wits, 2050 Wits, South Africa. bernhard.zipfel@wits.ac.za
概括
奥斯特拉洛皮塞克斯·塞迪巴 (Australopithecus sediba) 足部化石揭示了一个独特的马赛克,具有类似人类和类似猿类的特征. 这表明这种早期人类物种具有明显的双脚性和潜在的树木活动.
科学领域:
- 古人类学古人类学.
- 人类进化人类进化
- 功能性形态学 功能性形态学
背景情况:
- 发现奥斯特拉洛皮塞克斯 (Australopithecus sediba) 化石为早期人类解剖学和运动提供了关键的见解.
- 了解澳大利亚白座 (Australopithecus sediba) 的脚和脚形态是重建其生物力学能力的关键.
研究的目的:
- 为了分析一个保存完好的部分足部和脚的形态,澳大利亚白座 sediba.
- 为了将这些特征与其他原始人类的特征进行比较,并重建奥斯特拉洛皮特克斯·塞迪巴的运动行为.
主要方法:
- 详细的形态分析化石的远端骨,骨和骨.
- 与化石和现存的原始人类和原始人种类的比较分析.
- 根据解剖特征推断功能形态和运动能力的推断.
主要成果:
- 澳大利亚白座 (Australopithecus sediba) 的脚表现出原始 (类似子) 和衍生 (类似人类) 特征的马赛克.
- 骨关节形态在很大程度上与人类相似,表明了有效的脚功能.
- 类似猿类的特征包括一个优雅的形体和一个坚固的中间,表明潜在的树木适应.
结论:
- 奥斯拉洛皮塞克斯·塞迪巴 (Australopithecus sediba) 很可能实行一种独特的双脚形式,可能与树木结合.
- 脚的独特形态学表明,在人类血统中的双脚适应的进化中存在同型.
- 这些发现挑战了人类进化的简单线性模型,并突出了早期人类运动的多样性.
相关概念视频
Bones of the Lower Limb: Tibia and Fibula
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...
Ankle Joint
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...
Muscles of the Leg that Move the Foot and Toes
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.
Bones of the Lower Limb: Femur and Patella
The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
Pulse Assessment Sites
Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...
Overview of the Axial Skeleton
The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
The axial skeleton of the adult...
The axial skeleton of the adult...
