This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
The following statements are true regarding the SA node except 
Select and explain. 
A. Is located at the right border of the ascending aoa, B. It contains specilized nodal cardiac muscle, C. It is supplied by the atrial branches of the right coronary aery, D. It initiates cardiac conduction
A: Is located at the right border of the ascending aoa
Answer: A: Is located at the right border of the ascending aoa 
Explanation: SA Node is situated in the upper pa of sulcus terminalis,which is apa of Right atrium. BD CHAURASIA'S HUMAN ANATOMY,VOLUME 1,6TH EDITION,PAGE NO:254