1. True or false? Cardiac myocytes contract during diastole to eject blood from the ventricle, and relax during systole to allow the ventricle to fill. 2. True or false? The tricuspid and mitral valve...

1. True or false? Cardiac myocytes contract during diastole to eject blood from the ventricle, and relax during systole to allow the ventricle to fill.

2. True or false? The tricuspid and mitral valve leaflets are tethered by chordae tendineae to papillary muscles.