Vertebra prominens is a term used to describe the seventh cervical vertebra, which protrudes further out from the body compared to other vertebrae. However, there are several different synonyms for this term. One common synonym is the 'C7 vertebra,' as it is the seventh in the cervical spine. Another synonym is the 'prominent vertebra,' due to its notable protrusion. The 'non-bifid vertebra' is another term used because it lacks the typical bifid spinous process found in most cervical vertebrae. Additionally, it is sometimes called the 'vertebral eminence.' Ultimately, irrespective of the terminology used, it remains a significant part of the human skeletal system, allowing for proper mobility and flexibility of the head and neck.