Term Name: endocardium
Synonyms: endocardial lining, endocardial tissue, heart endocardial tissue, heart endocardium
Definition: The endocardium is an anatomical structure comprised of an endothelium and an extracellular matrix that forms the innermost layer of tissue of the heart, and lines the heart chambers[GO].
Ontology: Cell Ontology [UBERON:0002165]

Relationships
has parts: endocardial cell endocardial cushion endocardial endothelium endocardial ring
is a type of: heart layer tunica intima
has subtype: atrioventricular canal endocardium endocardium of atrium endocardium of auricle endocardium of left auricle endocardium of right auricle endocardium of ventricle interventricular septum endocardium left atrium endocardium right atrium endocardium
immediate_transformation_of: presumptive endocardium