Thoracic vertebrae
Thoracic Vertebrae
The Thoracic Vertebrae (pronounced: tho-RAS-ik ver-te-bray) are a group of twelve small bones that form the vertebral spine in the upper trunk. The term originates from the Greek word "thorax", meaning chest, and the Latin word "vertebra", meaning joint.
Structure
The thoracic vertebrae are unique in their structure. They are the only vertebrae that have facets on their bodies for the articulation with the heads of the ribs. Each thoracic vertebra has two facets on the sides of its body, which are for articulation with the head of a rib.
Function
The main function of the thoracic vertebrae is to protect the spinal cord and support the rib cage. They also provide attachment points for many of the muscles that move the neck, head, and arms.
Related Terms
- Vertebrae: The individual bones that make up the spine.
- Spinal Cord: The main pathway for information connecting the brain and peripheral nervous system.
- Ribs: The bones in the chest that protect the heart and lungs.
See Also
External links
- Medical encyclopedia article on Thoracic vertebrae
- Wikipedia's article - Thoracic vertebrae
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