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Valva trunci pulmonalis

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valva trunci pulmonalis --> pulmonary valve

(Science: anatomy, cardiology) The heart valve that divides the right ventricle and the pulmonary artery. The pulmonic valve opens when the right ventricle contracts allowing blood to flow into the pulmonary artery. The pulmonic valve on closure prohibits the backwash of unoxygenated blood into the right ventricle. The pulmonic valve has 3 valve cusps.