Anatomy Thorax 3d4107a8 All of the following are contents of middle mediastinum except A Phrenic nerve B Ascending aoa C Arch of aoa D Pulmonary aery High-Yield Explanation Arch of aoa occupies in the superior mediastinum B D CHAURASIA&;S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME 1 SIXTH EDITION Page no:246