A ventricular outflow tract is a portion of either the left ventricle or right ventricle of the heart through which blood passes in order to enter the great arteries .
5-446: The right ventricular outflow tract ( RVOT ) is an infundibular extension of the ventricular cavity that connects to the pulmonary artery . The left ventricular outflow tract ( LVOT ), which connects to the aorta , is nearly indistinguishable from the rest of the ventricle. The outflow tract is derived from the secondary heart field, during cardiogenesis. Both the left and right outflow tract have their own term. The right outflow tract
10-464: Is a conical pouch formed from the upper and left angle of the right ventricle in the chordate heart , from which the pulmonary trunk arises. It develops from the bulbus cordis . Typically, the infundibulum refers to the corresponding internal structure, whereas the conus arteriosus refers to the external structure. Defects in infundibulum development can result in a heart condition known as tetralogy of Fallot . A tendinous band extends upward from
15-400: Is called "conus arteriosus" from the outside, and infundibulum from the inside. In the left ventricle the outflow tract is the "aortic vestibule". They both possess smooth walls, and are derived from the embryonic bulbus cordis In both left and right ventricle there are specific structures separating the inflow and outflow of blood. In the right ventricle, the inflow and outflow is separated by
20-450: The right atrioventricular fibrous ring and connects the posterior surface of the infundibulum to the aorta . The infundibulum is the entrance from the right ventricle into the pulmonary artery and pulmonary trunk. The wall of the infundibulum is smooth. [REDACTED] This article incorporates text in the public domain from page 531 of the 20th edition of Gray's Anatomy (1918) This cardiovascular system article
25-547: The supraventricular crest. In the left ventricle, the anterior cusp of the mitral valve is responsible for separating the flow of blood. A form of ventricular tachycardia originating from this anatomical structure is called RVOT tachycardia. The RVOT is pathophysiologically affected in Brugada syndrome . This cardiovascular system article is a stub . You can help Misplaced Pages by expanding it . Conus arteriosus The infundibulum (also known as conus arteriosus )
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