1. Intercostal Vessels and Nerves Dr. Hassan Shaibah

2. Intercostal a. 1)Posterior intercostal a. first 2 spaces from superior intercostal a., a branch of the of the subclavian a. lower 9 spaces from descending thoracic aorta 1 2 Posterior intercostal a. costocervical trunk

3. Intercostal a. Posterior intercostal Lower 9 space descending thoracic aorta

4. Intercostal a. 2)The anterior intercostal a first 6 spaces internal thoracic artery subclavian a. lower spaces from musculophrenic a. from -internal thoracic artery. internal thoracic a subclavian a. Ant. intercostal a

5. Intercostal a. 2)The anterior intercostal a lower spaces from musculophrenic a. -internal thoracic artery. musculophrenic a Sup. epigastric a.

8. Veins Post. intercostal V. drain into azygos or hemiazygos v. Ant. intercostal v. drain into internal thoracic & musculophrenic v

9. Branch of intercostal nerve Intercostal n. Lateral cutaneous Ant. cutaneous Parietal pleura Muscular Post. Rami Post. Rami.