骨强度在性别估计中的解剖基础:测试软组织和合成尺寸之间的关系
Jade S De La Paz1, Hallie R Buckley1, Siân E Halcrow1,2
1Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand.
American journal of biological anthropology
|November 15, 2025
概括
骨性别估计方法可能不依赖软组织大小. 这项研究发现肌肉大小和骨强度之间的关系有限,挑战了人类学性别决定中的假设.
科学领域:
- 法医人类学 法医人类学
- 生物考古学的生物考古学
- 人类解剖学 人类解剖学
背景情况:
- 骨性别估计的形态学方法通常假定软组织 (肌肉/带) 尺寸和骨强度 (体尺寸) 之间的联系.
- 这种假设认为,较大的肌肉会导致较大的体,这种模式通常在男性中观察到.
- 然而,软组织尺寸和骨强度之间的直接关系对于性别估计尚未得到广泛的研究.
研究的目的:
- 评估肌肉大小,带质量,内表面积和骨性别估计之间的关系.
- 为了检查三个特定的骨特征的这些关系:脊,状过程和状.
- 为了确定软组织大小是否是骨强度的可靠预测指标,用于性别估计.
主要方法:
- 来自新西兰和泰国的老年尸体的剖析和三维扫描 (n=20).
- 骨分析的重点是脊,状过程和状的内表面面积.
- 对肌肉大小,带质量和内区域的性别和人口差异进行统计测试,并进行相关性分析.
主要成果:
- 对于肌肉或体大小,没有发现显著的人口差异.
- 在泰国肌肉群中观察到性别差异,但在新西兰肌肉群中没有.
- 虽然发现了一些肌肉大小和肠道区域之间的正相关性,但只有一个显示出显著的性别差异. 形态性别估计方法是准确的,但与软组织或体大小没有显著关系.
结论:
- 这项研究表明,肌肉大小和体大小之间存在潜在的,尽管很弱的关系.
- 然而,它挑战了肌肉大小和骨强度之间的直接联系,这对于性别估计至关重要.
- 这些发现表明,假设更大的肌肉始终导致强壮的骨特征的性别确定可能不成立.
相关概念视频
01:20Introduction to the Skeletal System
8.7K
The skeletal system is the central framework of the body, consisting of different connective tissues: bones, cartilage, tendons, and ligaments.
Components of the Skeletal System
Bone, or osseous tissue, is a hard connective tissue that forms an internal support structure for the human body. Bones shield vulnerable organs and soft tissue from external forces. For example, the vertebral bones protect and support the spinal cord.
Cartilage, a semi-rigid connective tissue found in regions such as...
Components of the Skeletal System
Bone, or osseous tissue, is a hard connective tissue that forms an internal support structure for the human body. Bones shield vulnerable organs and soft tissue from external forces. For example, the vertebral bones protect and support the spinal cord.
Cartilage, a semi-rigid connective tissue found in regions such as...
8.7K
01:09Changes in the Appendicular Skeleton with Age
3.3K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
3.3K
01:17Gross Anatomy of Bone
8.8K
The two main features of a long bone are the diaphysis and the epiphysis.
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in...
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in...
8.8K
01:12Gross Anatomy of Skeletal Muscles
18.9K
The connective tissues play a significant role in arranging the muscle fibers into a hierarchical structure that forms a complete muscle. Consider a muscle like the bicep brachii, commonly called the bicep. This muscle comprises thousands of muscle fibers enclosed by a protective layer of connective tissue called the endomysium. The endomysium is primarily composed of reticular fibers, a type of thin collagen fiber. It allows the exchange of nutrients and waste products at the fiber level,...
18.9K
01:22Sutures of the Skull
10.0K
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
10.0K
01:55Bone Structure
51.4K
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.
51.4K