Typically, mammals only have seven cervical vertebrae the same as humans.

一般来说，哺乳动物只有七个颈椎，和人类一样。

From top to bottom, the first seven bones are the cervical vertebrae, the next twelve are the thoracic vertebra and the next five, are the lumbar vertebrae.

从上至下数，颈椎7块，胸椎12块，腰椎5块。