| 释义 |
心包xīnbāo包在心脏外面的一层薄膜,心包和心脏壁的中间有浆液,能润滑心肌,使心脏活动时不跟胸腔磨擦而受伤。{pericardium; thin, closed, membranous sac surrounding the heart and containing a clear serous liquid that lubricates the cardiac muscles so that the heart does not rub the thoracic cavity and get injured} |