1. Receives blood from the coronary sinus
(Choice option)
Pectinate muscle
Aorta
Mitral valve
Right ventricle       Â
Left atrium        Â
Right atrium       Â
Left ventricle       Â
Papillary muscle    Â
2. Discharges blood to the pulmonaryarteries
(Choice option)
Pectinate muscle
Aorta
Mitral valve
Right ventricle       Â
Left atrium        Â
Right atrium       Â
Left ventricle       Â
Papillary muscle    Â
3. Passes blood from the heart to the rest of thebody
(Choice option)
Pectinate muscle
Aorta
Mitral valve
Right ventricle       Â
Left atrium        Â
Right atrium       Â
Left ventricle       Â
Papillary muscle    Â