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関連する概念動画

Arteries of the Upper Limbs01:12

Arteries of the Upper Limbs

2.5K
The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
2.5K
Veins of Upper Limbs01:17

Veins of Upper Limbs

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The human circulatory system, a marvel of biological engineering, is a complex network of vessels that transport blood throughout the body. Among these, the veins responsible for carrying blood from the upper limbs are divided into two categories: deep and superficial.
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
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Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

7.5K
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...
7.5K
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

4.7K
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...
4.7K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

5.1K
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...
5.1K
Electric Potential and Potential Difference01:16

Electric Potential and Potential Difference

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Suppose a positive test charge moves away from a positive static charge, then the Coulomb force does positive work, and its electric potential energy decreases. The potential energy per unit charge is defined as the electric potential. The electric potential is independent of the test charge.
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
5.8K

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Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
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生まれながらの上肢の違いに関連した遺伝性シンドローム

Adham Elsherbini1, Jonah Perlmutter1, Adam Mosa2

  • 1Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada.

The Journal of hand surgery
|February 14, 2026
PubMed
まとめ

生まれながらの上肢の差異は,胚の発達に影響を与える遺伝子変異と関連しています. 画像と遺伝子検査による早期発見は,協調的なケアと改善された結果のために不可欠です.

キーワード:
ブラキダクティリア症 (Brachydactyly) とはエクトロダクティリ (ectrodactyly) とは遺伝性シンドローム 遺伝性シンドロームマクロダクティリー (Macrodactyly) とはポリダクティル系である.半径沿線欠陥である.シンダクティリア (syndactyly) とは,シンダクティリア (syndactyly) とは,シンダクティリア (sydactyly) とは,シンダクティリア (sydactyly) とは,シンダクティリア (sydactyly) とは,シンダクティリア (sydactyly) とは,シンダクティリア (sydactyly) とは,シンダクティリア (sydactyly) とは

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Author Spotlight: Enhancing Upper Limb Rehabilitation in Stroke Patients Through Advanced Robotic and Neuromodulation Technologies
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A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
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関連する実験動画

Last Updated: Feb 15, 2026

Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
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Author Spotlight: Enhancing Upper Limb Rehabilitation in Stroke Patients Through Advanced Robotic and Neuromodulation Technologies
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A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
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科学分野:

  • 発達生物学 発達生物学とは
  • 遺伝学 遺伝学とは
  • 整形外科 整形外科 整形外科

背景:

  • 生まれながらの上肢の違いは,10,000生児に20〜30人に影響し,しばしば手術を必要とする.
  • これらの差異は,胚のシグナル伝達経路の障害から生じる,単一または全身性シンドロームの一部である可能性があります.

研究 の 目的:

  • 生まれながらの上肢の違いの遺伝的基礎とフェノタイプのパターンを検討する.
  • 診断と管理における遺伝子検査とイメージングの役割を強調する.

主な方法:

  • 胚の発達と遺伝信号伝達経路のレビュー.
  • フェノタイプのパターンと関連する遺伝子変異の分析.
  • 画像と遺伝子検査を含む診断アプローチの議論.

主要な成果:

  • 上肢の特定の差異は,近辺-遠端,半径-頭,背中-腹軸の障害と相関しています.
  • 重要な遺伝的関連には,TBX5,FANCA,GLI3,FGFR2,TP63およびPIK3CA,AKT1,RASA1.1の体性変異が含まれています.
  • ゲノムシーケンシングは,これらの状態のモノジェニックまたはモザイク起源を明らかにします.

結論:

  • 遺伝的および画像分析による正確な症候群の識別は不可欠です.
  • 早期診断は,調整されたケア,管理計画,そして多学科的な協力を促進します.
  • 影響を受けた個人の機能的および心理的社会的結果を最適化することが究極の目標です.