Chordae tendineae: Difference between revisions
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The '''chordae tendineae''', or '''heart strings''', are cord-like [[tendon]]s that connect the [[papillary muscle]]s to the [[tricuspid valve]] and the [[mitral valve]] in the [[heart]]. | The '''chordae tendineae''', or '''heart strings''', are cord-like [[tendon]]s that connect the [[papillary muscle]]s to the [[tricuspid valve]] and the [[mitral valve]] in the [[heart]]. | ||
When the right [[Ventricle (heart)|ventricle]] of the heart contracts, the [[blood pressure]] pushes the tricuspid valve which closes and prevents a backflow of blood into the right [[Atrium (heart)|atrium]]. The chordae tendineae prevents the flaps from being | When the right [[Ventricle (heart)|ventricle]] of the heart contracts, the [[blood pressure]] pushes the tricuspid valve which closes and prevents a backflow of blood into the right [[Atrium (heart)|atrium]]. The chordae tendineae prevents the flaps from being everted into the right atrium. Similarly, these cord-like tendons hold in position other flaps like the bicuspid or [[mitral valve]]. | ||
Chordae tendineae are approximately 80% [[collagen]], while the remaining 20% is made up of [[elastin]] and endothelial cells. | Chordae tendineae are approximately 80% [[collagen]], while the remaining 20% is made up of [[elastin]] and endothelial cells. | ||
Revision as of 12:27, 31 March 2009
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Overview
The chordae tendineae, or heart strings, are cord-like tendons that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart.
When the right ventricle of the heart contracts, the blood pressure pushes the tricuspid valve which closes and prevents a backflow of blood into the right atrium. The chordae tendineae prevents the flaps from being everted into the right atrium. Similarly, these cord-like tendons hold in position other flaps like the bicuspid or mitral valve.
Chordae tendineae are approximately 80% collagen, while the remaining 20% is made up of elastin and endothelial cells.
External links
- Template:SUNYAnatomyLabs cvfg
- Template:EMedicineDictionary
- Template:EMedicineDictionary
- Template:UCDavisOrganology - "Mammal heart, chambers (Gross, Low)"
- Template:BiowebUW
- Illustration at health-pictures.com
