External intercostal muscles
| External intercostal muscles | |
|---|---|
Position of the external intercostal muscles (shown in red) seen from the back. | |
| Details | |
| Origin | Lower border of ribs |
| Insertion | Upper border of rib below |
| Artery | Intercostal arteries |
| Nerve | Intercostal nerves |
| Actions | Inhalation |
| Antagonist | Intercostales interni muscles |
| Identifiers | |
| Latin | musculi intercostales externi |
| TA98 | A04.4.01.012 |
| TA2 | 2311 |
| FMA | 74084 |
| Anatomical terms of muscle | |
The external intercostal muscles or external intercostals (intercostales externi) are eleven in number on both sides.