The average human is born with the same number of ribs regardless of gender. The ribs articulate with the thoracic vertebra. For example, the first rib, or rib 1, is the most significant and ...

There are 12 thoracic vertebrae in the thoracic region ... NIDILRR is a Center within the Administration for Community Living (ACL), Department of Health and Human Services (HHS). The contents of this ...