There are usually two ways to count the thoracic vertebrae: 1, top-down counting, mainly using the large vertebrae as an anatomical point, the large vertebrae are the highest spinous process of the cervical collar when a person lowers his head, that is, the seventh cervical vertebrae, a protrusion below the seventh cervical vertebrae is the spinous process of the first thoracic vertebrae, and in order downward are the second, third, and fourth thoracic vertebrae spinous processes, respectively. 2, bottom-up counting, first of all, to determine the location of the lumbar vertebrae, generally with the highest point of the iliac crest connecting the flat fourth and The fifth lumbar spine spine gap is the anatomical marker, and the third, second, and first lumbar spine spines in that order, and the first and second thoracic spine spines further up. There is also a way to use anatomical signs, the line of the lower edge of the scapulae of normal people in the standing position is generally level with the spinous process of the seventh thoracic vertebra.