Right atrium myocardium

The right atrium myocardium refers to the muscular layer forming the wall of the right atrium, the heart chamber that receives deoxygenated blood from the body via the superior and inferior vena cava[1][5]. The right atrial myocardium contains striated cardiac muscle cells that enable contraction, helping move blood into the right ventricle. The right atrium also houses the sinoatrial node, the heart's natural pacemaker that initiates cardiac electrical activity. Structural and molecular remodeling of the right atrium myocardium is associated with cardiovascular diseases such as atrial fibrillation, heart failure, and pulmonary hypertension, but the tissue itself is not a molecular drug target[2][3][7]. In summary, “right atrium myocardium” is an anatomical tissue region, not a canonical molecule, enzyme, receptor, or other pharmacological target. It should not be annotated as a molecular target in structured pharmacology data.

Other names

Right atrial myocardiummyocardium of the right atriumright atrial muscleRA myocardium