noun🔗Share大静脈Either of the two large veins that take oxygen depleted blood, from the upper body and from the lower body, and return it to the right atrium of the heart."The doctor explained that the vena cava is a large vein that brings blood without oxygen back to the heart. "医者は、大静脈は酸素のない血液を心臓に戻す太い静脈であると説明した。anatomyorganphysiologymedicinebiologybodyChat with AIVocabulary GamePractice Reading
