ll of the following are true statements except: only a few connections, or anastomoses, exist between the larger branches of the coronary arteries. only a few connections, or anastomoses, exist between the larger branches of the coronary arteries. both atria receive their blood supply from branches of the right and left coronary arteries. both atria receive their blood supply from branches of the right and left coronary arteries. the right coronary artery is dominant in about 50% of all hearts. the right coronary artery is dominant in about 50% of all hearts. the more abundant blood supply goes to the myocardium of the left ventricle rather than the right ventricle. the more abundant blood supply goes to the myocardium of the left ventricle rather than the right ventricle. Skip to navigation