Musculus spinalis thoracis

例句：

1. 1.The muscles of the chest are responsible for breathing.
   胸部的肌肉负责呼吸。
2. 2.The doctor examined the patient's spine and found no signs of injury.
   医生检查了患者的脊柱，没有发现任何受伤的迹象。
3. 3. The patient was advised to exercise regularly to strengthen the muscles of the chest.
   患者被建议定期锻炼以加强胸部肌肉。