Physical Examination Video Series Video Lecture Course. Clinical skills. To understand Splitting of S2 better, we should first understand its normal physiology.
Second heart sound: It has two audible components, the aortic valve closure sound (A2) and the pulmonic valve closure sound (P2), which are normally split on inspiration and virtually single on expiration. Multimedia. Osce Exams Live. Physical Examination Video Series Video Lecture Course.