torso

The torso, or trunk, is the central part of the human body, excluding the head, neck, arms, and legs. In vertebrates, it is commonly referred to as the chest and contains vital organs for respiration and circulation, such as the lungs and heart. The bony framework of the human thorax includes the thoracic vertebrae, ribs, and sternum. In insects, the thorax is the middle body segment and bears legs and wings. The torso also houses the abdominal muscles, which support the viscera, aid in breathing, and facilitate movement. The axial skeleton, which includes the rib cage, protects these vital organs.12345