The human body has a total of twelve thoracic vertebrae, the top one is the first thoracic vertebrae, and the bottom one is the twelfth thoracic vertebrae, the first thoracic vertebrae are connected to the cervical vertebrae, when the human body keeps its head down, there will be a more prominent bone structure in the back of the neck, this position is the location of the seventh cervical vertebrae of the human body, down to the nearest vertebrae is the first thoracic vertebrae of the human body, and the twelfth thoracic vertebrae in the human body The lowest point of the back, and the human body’s first lumbar vertebrae connected, each thoracic vertebrae are connected to two ribs, the twelfth thoracic vertebrae on both sides is the twelfth pair of ribs. Some people have a relatively small twelfth pair of ribs, it is difficult to touch to find, generally need to first locate the eleventh pair of ribs of the rib head, positioned below the human side of the chest, can touch the free, prominent ribs is the eleventh rib, along the eleventh rib to the back of the midline position is the eleventh thoracic vertebra, and then down a vertebra is the location of the twelfth thoracic vertebra.