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are structures that allow for one-way blood flow through the heart.
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Valves (heart valves) — structures that ensure one-way blood flow through the heart.
The four main heart valves:
- Atrioventricular valves: tricuspid (right AV) and mitral/bicuspid (left AV)
- Semilunar valves: pulmonary (between right ventricle and pulmonary artery) and aortic (between left ventricle and aorta)
AV valves are supported by chordae tendineae and papillary muscles to prevent backflow during ventricular contraction.
The four main heart valves:
- Atrioventricular valves: tricuspid (right AV) and mitral/bicuspid (left AV)
- Semilunar valves: pulmonary (between right ventricle and pulmonary artery) and aortic (between left ventricle and aorta)
AV valves are supported by chordae tendineae and papillary muscles to prevent backflow during ventricular contraction.
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