パピラリ筋は,心臓の固体壁に直接付着しない.
1Department of Radiology, New York University School of Medicine,650 First Ave, Room 600A, New York, NY 10016, USA. leon.axel@med.nyu.edu
Circulation
|June 16, 2004
まとめ
パピラリ筋 (PMs) は,心臓の壁トラベキュラに付着し,直接固体壁に付着しません. CTスキャンで明らかになったこの発見は,心臓機能と力伝達に関する私たちの理解を変えます.
科学分野:
- 心血管の解剖学について
- 心臓イメージングは,心臓のイメージングです.
- 医療診断 医療診断
背景:
- パピラー筋 (PMs) は,シストーラ中に心房弁の漏れを防ぐために非常に重要です.
- 従来の理解では,PM基が心臓の固体壁に直接結合していると考えられています.
- PM結合の正確な性質は,機能的理解に影響する.
研究 の 目的:
- 室内壁にパピラリ筋の結合を in vivo で調べるため.
- 詳細な解剖学的視覚化のための高度なイメージング技術を活用する.
- PMsと心臓の壁の間の幾何学的関係を明らかにするために.
主な方法:
- X線マルチ検出器コンピューティングトモグラフィー (CT) を採用.
- 詳細な分析のためにインタラクティブな3D再構築を使用します.
- 心臓の構造の非侵襲的インビボ検査.
主要な成果:
- パピラ筋の基礎は,心室壁を覆うトラベキュラ・カーネアに付着する.
- この結合パターンは,左心室と右心室の両方で観察されました.
- 発見は,心臓の固い壁に直接結合するという伝統的な見解と矛盾しています.
結論:
- この研究は,パピラ筋の結合に関する新しい幾何学的な理解を明らかにしている.
- この改訂された理解は,心臓の機能に重大な影響を及ぼします.
- これは,PMと心臓の壁の間の力伝達メカニズムの理解に影響します.
関連する概念動画
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Connective Tissue Membranes
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Papillary Dermis
Dermis
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Papillary Layer
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Reticular Dermis
The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
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Reticular Layer
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