Anatomy True about internal thoracic artery is- A Arises from 1st part of subclavian artery B Pericardiophrenic is a terminal branch C Divides in the 4th intercostal space D Descends at posterior end of intercostal space 💡 Explanation True about internal thoracic artery is- ✓ Correct Answer: A. Arises from 1st part of subclavian artery