Right atrium右心房 Receive blood from superior Aorta Right auricle vena cava上腔靜脈 · Inferior vena cava下腔靜脈 Superior vena cava Venous blood from the heart the coronary sinus冠状窦 Musculi pectinati Interior surface, musculi Limbus fossae pectinati梳状肌 ovals Fossa Fossa ovale卵圆窝,on ovale interatrial septum Crista Ria. Crista terminalis界嵴 Right auricle心耳,an Valve of corona extension from atrium cava with valve irregular surtace · Location of sinoatrial node竇 厉結 at junction with superior vena cavaRight atrium 右心房 • Receive blood from superior vena cava 上腔靜脈 • Inferior vena cava 下腔靜脈 • Venous blood from the heart, the coronary sinus 冠状窦 • Interior surface, musculi pectinati 梳状肌 • Fossa ovale 卵圆窝, on interatrial septum • Crista terminalis 界嵴 • Right auricle 心耳, an extension from atrium, irregular surface • Location of sinoatrial node 竇 房結at junction with superior vena cava Superior vena cava Inferior vena cava with valve Fossa ovale Right auricle Musculi pectinati