関連ワード:  what is the structure of the vena cava    what is the structure of the inferior vena cava    what is the structure of the superior vena cava    what is the structure and function of the superior vena cava    what is the structure and function of the inferior vena cava    what is the structural difference between vena cava and aorta    vena cava structure and function  
結果 : what is the structure of the vena cava