Coloured SEM of the mitral valve of a human heart

Coloured SEM of the mitral valve of a human heart

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This image is part of the feature Inside The Body

Credit: PROFESSORS P.M. MOTTA & G. MACCHIARELLI/ SCIENCE PHOTO LIBRARY

Caption: Mitral valve of heart. Coloured Scanning Electron Micrograph (SEM) of the mitral valve of a healthy human heart. The mitral valve is one of the atrio-ventricular valves which channels the flow of blood from the left atrium into the left ventricle and prevents any backflow. At top (blue) is the mitral valve attached by tendonous cords (chordae tendineae) to a papillary muscle at lower left. Papillary muscles open and close the valve, while the valve's curved surface enables a one way flow of blood. Pink tissue at lower frame is muscle of the ventricle. Magnification: x115 at 6x7cm size. x170 at 4x5".

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Keywords: anatomy, cardiac valve, chordae tendineae, endocardium, heart, heart epithelium, heart valve, human body, mitral valve, scanning electron micrograph, sem

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