How many thoracic vertebrae are there?

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Multiple Choice

How many thoracic vertebrae are there?

Explanation:
The thoracic part of the spine is defined by how many vertebrae it contains, and in a typical adult there are twelve. These are numbered T1 through T12 and each vertebra forms a joint with a rib, which is what gives this region its distinctive rib attachments. This distinguishes it from the cervical region (seven vertebrae) and the lumbar region (five vertebrae). Therefore, twelve is the standard count for thoracic vertebrae. Rare anatomical variations may occur, but twelve is the correct and most common answer.

The thoracic part of the spine is defined by how many vertebrae it contains, and in a typical adult there are twelve. These are numbered T1 through T12 and each vertebra forms a joint with a rib, which is what gives this region its distinctive rib attachments. This distinguishes it from the cervical region (seven vertebrae) and the lumbar region (five vertebrae). Therefore, twelve is the standard count for thoracic vertebrae. Rare anatomical variations may occur, but twelve is the correct and most common answer.

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