Superior thoracic apeure is bounded by following except
T1 veebra
1st pair of ribs and their costal cailage
Superior border of the manubrium
Xiphoid process
Superior thoracic apeure is not bounded by Xiphoid process B D CHOURASIAS HUMAN ANATOMY UPPER LIMB THORAX VOLU, 1 SIXTH EDITION, PAGE NO, 190
Thorax