Assertion: pericardium | /r/HasProperty | two layers
Facets:
Source sentences:
text: The pericardium is composed of two layers, an outer fibrous pericardium and an inner serous pericardium.
text: It is composed of two layers: the fibrous pericardium (the outer layer that is made of tough connective tissue) and the serous pericardium (the inner layer in which serous fluid provides lubrication for the heart to beat with almost no friction).
text: It is composed of two layers: the fibrous pericardium (the outer layer that is made of tough connective tissue) and the serous pericardium (the inner layer in which serous fluid provides lubrication for the heart to beat with almost no friction).
text: The pericardium is a sac composed of two layers -- a fibrous membrane on the outside, and a serous one on the inside.