| 释义 |
atrioventricular (AV) septum a·tri·o·ven·tric·u·lar (AV) sep·tum (ā'trē-ō-ven-trik'yū-lăr sep'tŭm) [TA] The small part of the membranous septum of the heart just above the septal cusp of the tricuspid valve that separates the right atrium from the left ventricle. |