Describe valves of human heart
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Explanation:
he heart has four valves - one for each chamber of the heart. The valves keep blood moving through the heart in the right direction.
The mitral valve and tricuspid valve are located between the atria (upper heart chambers) and the ventricles (lower heart chambers).
The aortic valve and pulmonic valve are located between the ventricles and the major blood vessels leaving the heart.
The leaflets of the mitral and tricuspid valves are also supported by:
Chordae tendineae: tough, fibrous strings. These are similar to the strings supporting a parachute.
Papillary muscles: part of the inside walls of the ventricles.
The chordae tendineae and papillary muscles keep the leaflets stable to prevent blood from flowing backward.
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