Surgery In performing a tracheostomy, authorities agree that A The strap muscles should be divided B The thyroid isthmus should be preserved C The trachea should be entered at the second or third cartilaginous ring D Only horizontal incisions should be used 💡 Explanation In performing a tracheostomy, authorities agree that ✓ Correct Answer: C. The trachea should be entered at the second or third cartilaginous ring