Assertion: epicardium | /r/HasProperty | membrane
Facets:
Source sentences:
text: Inside this sac is the epicardium , a membrane that forms the outermost layer of the wall of the heart.
text: Inside this sac is the epicardium, a membrane that forms the outermost layer of the wall of the heart.
text: Inside this sac is the epicardium, a membrane that forms the outermost layer of the wall of the heart.