Term Name:	atrial cardiac muscle cell differentiation
Synonyms:	atrial cardiomyocyte differentiation, atrial heart muscle cell differentiation
Definition:	The process in which a relatively unspecialized cell acquires specialized features of a cardiac muscle cell in the atrium. Cardiac muscle cells are striated muscle cells that are responsible for heart contraction. The atrium is the part of the heart that receives blood into the organ.
Ontology:	GO: Biological Process [GO:0055011]    QuickGO    AmiGO