Anatomy Intercostal vessels and nerve runs in: A Upper border of the ribs B External intercostal and Internal intercostal muscle C Between the external intercostal and innermost internal, inter costal muscle D Between the innermost intercostal and internal intercostal muscle 💡 Explanation Intercostal vessels and nerve runs in: ✓ Correct Answer: D. Between the innermost intercostal and internal intercostal muscle