<prompt> The following statements are true regarding the SA node exceptIs located at the right border of the ascending aoaIt contains specilized nodal cardiac muscleIt is supplied by the atrial branches of the right coronary aeryIt initiates cardiac conduction  <response>: SA Node is situated in the upper pa of sulcus terminalis,which is apa of Right atrium. BD CHAURASIAS HUMAN ANATOMY,VOLUME 1,6TH EDITION,PAGE NO:254 