the innermost of the two layers of the pericardium
例句
用作名词 (n.)
There are rich microvilli on the surface of epithelial cells in the epicardium. 心外膜表面的上皮细胞有丰富的微绒毛。
Having no pattern in the cardiac muscles,their distribution was often found in the myocardial layers,and occassionally under the epicardium. 在心肌内分布无规律，多见于心肌层，也偶见于心外膜下。
美
[ˌepə'kɑːdɪəm]
