Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Synteny and Evolution02:31

Synteny and Evolution

4.1K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
4.1K
Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

14.7K
The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
14.7K
Muscles of the Forearm that Move the Hand and Fingers01:16

Muscles of the Forearm that Move the Hand and Fingers

3.4K
The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
3.4K
Evolutionary Psychology01:20

Evolutionary Psychology

1.3K
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
1.3K
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

11.2K
The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
11.2K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

11.7K
The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
11.7K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Genetic diversity of late Neanderthals in northwestern Europe.

Nature·2026
Same author

Identification of functionally related adaptations in the trabecular network of the proximal femur and tibia of a bipedally trained Japanese macaque.

Anthropological science : journal of the Anthropological Society of Nippon = Jinruigaku zasshi·2026
Same author

Swartkrans <i>Paranthropus</i> and Sterkfontein <i>Australopithecus</i> from southern Africa had different locomotor repertoires.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

First multi-individual Neanderthal mitogenomes from north of the Carpathians.

Current biology : CB·2026
Same author

Correction: Curated character of the Initial Upper Palaeolithic lithic artefact assemblages in Bacho Kiro Cave (Bulgaria).

PloS one·2026
Same author

Integration of distal tibial shape and internal trabecular bone structure among catarrhine primates.

Proceedings. Biological sciences·2026

相关实验视频

Updated: Apr 18, 2026

Behavioral Assessment of Manual Dexterity in Non-Human Primates
16:00

Behavioral Assessment of Manual Dexterity in Non-Human Primates

Published on: November 11, 2011

23.3K

人类的进化. 人类的进化. 在Australopithecus africanus中类似人类的手动使用.

Matthew M Skinner1, Nicholas B Stephens2, Zewdi J Tsegai2

  • 1School of Anthropology and Conservation, University of Kent, Canterbury CT2 7NR, UK. Department of Anthropology, University College London, London WC1H 0BW, UK. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig Germany. Evolutionary Studies Institute and Centre for Excellence in PalaeoSciences, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa. m.skinner@kent.ac.uk t.l.kivell@kent.ac.uk.

Science (New York, N.Y.)
|January 24, 2015
PubMed
概括
此摘要是机器生成的。

像人类一样的手骨结构在早期的原始人如澳大利亚白非洲人表明工具使用发生的时间比以前想象的要早得多. 这一发现揭示了人类手的进化和操纵能力的关键进化过渡.

更多相关视频

Assessing Forelimb Function after Unilateral Cervical SCI using Novel Tasks: Limb Step-alternation, Postural Instability and Pasta Handling
08:11

Assessing Forelimb Function after Unilateral Cervical SCI using Novel Tasks: Limb Step-alternation, Postural Instability and Pasta Handling

Published on: September 16, 2013

22.6K
Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

2.4K

相关实验视频

Last Updated: Apr 18, 2026

Behavioral Assessment of Manual Dexterity in Non-Human Primates
16:00

Behavioral Assessment of Manual Dexterity in Non-Human Primates

Published on: November 11, 2011

23.3K
Assessing Forelimb Function after Unilateral Cervical SCI using Novel Tasks: Limb Step-alternation, Postural Instability and Pasta Handling
08:11

Assessing Forelimb Function after Unilateral Cervical SCI using Novel Tasks: Limb Step-alternation, Postural Instability and Pasta Handling

Published on: September 16, 2013

22.6K
Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

2.4K

科学领域:

  • 古人类学古人类学.
  • 人类进化人类进化
  • 骨生物学 骨生物学

背景情况:

  • 强烈的精确性和力量的掌握是人类的关键能力.
  • 这些能力与减少的树木登和工具制造/使用有关.
  • 人类手的使用过程中这些进化过渡的时间仍然不清楚.

研究的目的:

  • 为了研究人类手的使用进化过渡的时间.
  • 为了确定什么时候出现了使用工具的类似人类的手姿势.
  • 为早期人类的操纵能力提供形态证据.

主要方法:

  • 分析了澳大利亚白猿非洲人 (Australopithecus africanus) 和普莱斯托时代原始人 (Pleistocene hominins) 的手指甲骨的脊椎骨格模式.
  • 化石原始人手骨形态与与工具使用相关的现代人类模式的比较.
  • 将形态学发现与石器使用的现有考古证据相结合.

主要成果:

  • 非洲原人 (Australopithecus africanus) 和几个普莱斯托时代原始人 (Pleistocene hominins) 在他们的甲手骨中表现出类似人类的状骨格模式.
  • 这些模式与指和指的强烈对立一致,这是工具使用的特征.
  • 这些发现表明,这些人类参与了与人类类似的手部姿势来使用工具.

结论:

  • 早期的原始人,包括南极人,具有适合使用工具的手骨形态.
  • 类似人类的手动姿势用于操纵,比传统认为的要早,可能是在二世时期发展出来的.
  • 形态学证据支持纪原始人中早期和更频繁的工具使用.