Anatomy Which of the following represents the surface marking of the aoic valve ? A Sternal end of left 3rd costal cailage B Sternal end of right 3rd costal cailage C Besides the sternum in left 3rd intercostal space D Besides the sternum in right 3rd intercostals space 💡 Explanation Which of the following represents the surface marking of the aoic valve ? ✓ Correct Answer: A. Sternal end of left 3rd costal cailage