Select all of the following that are true associations in the heart (multiple answers possible). -the atria and ventricles contract simultaneously
-the semilunar valves are secured via chordae tendineae
-the left ventricle pumps blood out to the systemic circuit
-the right ventricle receives deoxygenated blood from the atrium through the tricuspid valve
-the atria pump blood away from the heart, while the ventricles pump blood into the heart