closed circulatory system

Noun

blood circulation via the pumping of the heart pushing blood through closed vessels

Japanese Meaning

閉鎖循環系：心臓のポンプ作用により血液が閉じた血管内を循環するシステム。

Scientists studied how the closed circulatory system enables rapid oxygen delivery to active tissues during exercise.

研究者たちは、閉鎖循環系が運動中の活発な組織へ酸素を迅速に供給する仕組みを研究した。

Sense（1）

blood circulation via the pumping of the heart pushing blood through closed vessels

closed circulatory systems

（ plural ）