Muscles of the torso

Muscles of the Torso are a group of muscles that are primarily responsible for the movement of the torso, as well as providing stability and support to the spine and pelvis. These muscles are divided into several groups, including the abdominal muscles, the back muscles, and the chest muscles.

Abdominal Muscles

The abdominal muscles are a group of six muscles that extend from various places on the ribs to various places on the pelvis. They provide movement and support to the torso, allowing the body to twist and bend in various directions. The abdominal muscles include the rectus abdominis, the external oblique, the internal oblique, and the transversus abdominis.

Back Muscles

The back muscles are a complex group of muscles that work together to support the spine, maintain posture, and allow movement of the torso. They are divided into three layers: the superficial layer, the intermediate layer, and the deep layer. The superficial layer includes the trapezius, latissimus dorsi, and rhomboids. The intermediate layer includes the erector spinae and the deep layer includes the multifidus and rotatores.

Chest Muscles

The chest muscles, also known as the pectoral muscles, are located on the front of the rib cage. They are primarily responsible for the movement of the shoulder joint. The main muscles in this group are the pectoralis major and the pectoralis minor.

Function

The muscles of the torso work together to provide stability and movement to the body. They allow the body to bend and twist, and they also help to maintain posture. In addition, these muscles play a crucial role in breathing, as they help to expand and contract the chest cavity.

See Also

• Muscular system
• Human anatomy