Surgery During an emergency thoracotomy, the incision is made > 1cm lateral to the sternal margin. This will preserve which of the following structures? A Intercostal aery B Superficial epigastric aery C Internal mammary aery D Intercostal vein 💡 Explanation During an emergency thoracotomy, the incision is made > 1cm lateral to the sternal margin. This will preserve which of the following structures? ✓ Correct Answer: C. Internal mammary aery