Vena cardiaca parva

例句：

1. 1. The heart's vena cava is responsible for carrying blood away from the heart.
   心脏的冠状静脉负责将血液从心脏运出。
2. 2.This condition is often associated with atrial fibrillation, which can cause irregular heartbeats.
   这种状况通常与心房颤动有关，会导致心跳不规则。
3. 3. Venous congestion is a common complication of heart failure and can lead to swelling in the legs.
   静脉淤血是心脏病衰竭的常见并发症，可能导致腿部肿胀。