Definition of Trunk bones
Trunk bones: The 51 trunk bones consist of 26 vertebrae, 24 ribs, and the sternum. The 26 vertebrae comprise 7 cervical, 12 thoracic, and 5 lumbar vertebrae, plus the sacrum and the coccyx. The 24 ribs comprise 14 true ribs, 6 false ribs, and 4 floating ribs. The sternum is the breastbone. Along with the bones of the head, also known as axial bones.
Last Editorial Review: 3/30/2012
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?