Intercostal space - Spatium intercostale
The intercostal space is the space between two ribs. Since there are 12 ribs on each side, there are 11 intercostal spaces, each numbered for the rib superior to it.
This definition incorporates text from the wikipedia website - Wikipedia: The free encyclopedia. (2004, July 22). FL: Wikimedia Foundation, Inc. Retrieved August 10, 2004, from http://www.wikipedia.org
General Anatomy > Bones; Skeletal system > Axial skeleton > Thoracic skeleton > Thoracic cage > Intercostal space