| Front | Anterior intercostal arteries |
|---|---|
| Back | Structure: arise from the internal thoracic artery and course within the intercostal spaces from anterior to midaxillary line, where they anastomose with posterior intercostal arteries. Function: 1. Supply blood to anterior chest wall 2. Anastomose with posterior intercostal arteries to provide collateral pathways between ascending and descending aorta |
Tags: arteries
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