| Intercostal arteries | |
|---|---|
 Intercostal spaces, viewed from the left | |
| Details | |
| Vein | Intercostal veins |
| Supplies | Intercostal muscles and intercostal space |
| Identifiers | |
| Latin | arteriae intercostales |
| Anatomical terminology | |
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (August 2023) |
The intercostal arteries are a group of arteries passing within an intercostal space (the space between two adjacent ribs). There are 9 anterior and 11 posterior intercostal arteries on each side of the body. The anterior intercostal arteries are branches of the internal thoracic artery and its terminal branch – the musculophrenic artery. The posterior intercostal arteries are branches of the supreme intercostal artery and thoracic aorta.
Each anterior intercostal artery anastomoses with the corresponding posterior intercostal artery arising from the thoracic aorta.