ネズミの脳内のタラミックコンシューラの包括的なマッピング
Pamela Meneses Iack1, Diego Szczupak2, Danielle Rayêe3
1Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro CEP 21941-902, Brazil.
Cerebral cortex (New York, N.Y. : 1991)
|August 21, 2025
まとめ
新しい研究により,皮質と逆側タラムスを接続する新しい白質経路であるタラミック・コミッサー (TC) が特定されました. これらのTCは双方向の対称性を示し,半球間機能的調節における役割を示唆している.
科学分野:
- 神経科学
- 神経解剖学
背景:
- コルパス・カロサムのような脳内部が 半球間のコミュニケーションを 促進します
- 最近の研究では,新型の経路であるタラミック・コミッサー (TCs) が発見され,皮質と対側タラムスを接続している.
研究 の 目的:
- タラミック・コミュサール (TC) のプロジェクトームをマッピングする.
- 特定の皮質領域を特定し,その標的となるタラミック核を特定する.
主な方法:
- アレン・ブレイン・インスティテュートの ネズミの接続性アトラスを利用しました
- 皮質とタラミック領域を繋ぐ 白い物質の繊維束を分析した
主要な成果:
- TCの投影は主にロストラル皮質の領域から発生します.
- TCのプロジェクションは数多く,高度の双方向対称性を表しますが,ipsilateral経路よりも頑丈ではありません.
- タラムスからコントララテラル皮質への投影は見つかりませんでしたが,TCは相互ではないことを示しています.
結論:
- 半球間接続のハブとして機能します
- タラミックコンシューラ (TC) は,半球間機能的調節に役割を果たす可能性があります.
関連する概念動画
Anatomy of the Brain: Major Regions
11.6K
The brain is the most complex organ in the human body. It consists of four main parts: the cerebrum, diencephalon, cerebellum, and brainstem.
The cerebrum is the largest section of the brain and divides into left and right hemispheres, separated by a deep fissure. The cerebral outer layer of grey matter — the cerebral cortex — comprises elevations called gyri and shallow groves called sulci. The inner portion of white matter includes long nerve fibers known as axons, which connect...
The cerebrum is the largest section of the brain and divides into left and right hemispheres, separated by a deep fissure. The cerebral outer layer of grey matter — the cerebral cortex — comprises elevations called gyri and shallow groves called sulci. The inner portion of white matter includes long nerve fibers known as axons, which connect...
11.6K
Anatomy of the Brain: Ventricles
10.4K
There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
10.4K
Tooth Anatomy
2.8K
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
2.8K


