Anatomy Thorax ce726946 SA Node is located at A Upper end crista terminalis B Lower end of crista terminalis C At opening of IVC D At ostium primum High-Yield Explanation SA node is situated at the atriocaval junction in the upper pa of the sulcus terminalis B D CHAURASIA'S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME 1 SIXTH EDITION Page no-262