Intercostal space
spatium intercostale
The space between two neighboring ribs, and between the corresponding costal cartilages. Each space takes the number of the rib that forms the upper limit: the 4th space lies between the 4th and 5th ribs. There are 11 intercostal spaces and 11 intercostal nerves.

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Related clinical cases
- Thoracotomy and the intercostal space