noun
vena cava
Anatomical term for the large veins that return deoxygenated blood to the heart. Used in medical and biological contexts.
大静脈は、体の各部から心臓へ血液を戻す太い血管です。
The vena cava is a large blood vessel that returns blood from various parts of the body to the heart.
大動脈 (aorta) carries oxygenated blood away from the heart, while 大静脈 (vena cava) returns deoxygenated blood to the heart.
Compound of 大 (large) and 静脈 (vein), reflecting its anatomical role as the body's largest veins.