Anatomy Surface marking of the mitral valve is A Behind sternal end of left 4th costal cailage B Behind sternal end of right 4th costal cailage C Left 4th intercostal space in the midclavicular line D Left 3rd intercostal space in the midclavicular line 💡 Explanation Surface marking of the mitral valve is ✓ Correct Answer: A. Behind sternal end of left 4th costal cailage