trunk muscles
Trunk muscles are divided into the muscles of the back, chest and abdomen. Spina covers the entire back surface of the body. The upper limit of its amount to the occipital protuberance. Lower boundary are the sacroiliac joint and the coccyx.
The back is represented by the deep and superficial muscles.
Superficial back muscles attached to the skeleton of the shoulder girdle and humerus, and are arranged in two layers.
Deep muscles of the back to form three layers: superficial, middle and deep.
suboccipital muscles
By suboccipital muscles are Rectus capitis posterior major muscle, Rectus capitis posterior minor muscle and the upper and lower oblique muscles of the head. These muscles are located deep under the semispinalis, the length of the belt and the muscles of the head ...
The muscles acting on the joints of the shoulder girdle
Pectoralis major muscle is massive, fan-shaped, occupies a large part of the anterior chest wall.
Own (autochthonous) muscles of the chest
This group of muscles include the external and internal intercostal muscles, innermost intercostal muscles, the muscles and the transverse subcostal chest muscles, and the muscles lifting edge (long and short) ...
diaphragm
Aperture - mobile musculotendinous partition between the chest and abdominal cavities.