Bosh miyaning tuzilishi

the thorax) subserve respiration (muscles of respiration, including intercostal

muscles).

The Muscles of the Trunk

The muscles of the trunk include back, thoracic, and abdominal

muscles as well as diaphragm

The Back

_ Segmental muscles of the back: m. erector spinae

_ Muscles encroaching on the back: mm. trapezius, rhomboideus

major and minor, together with levator scapulae (shoulder girdle

muscle) and latissimus dorsi (muscle of the upper extremity)

The Thoracic Wall

_ Intercostal muscles (external, internal, intimi)—inspiration, expiration;

scalenus muscles—inspiration

_ Muscles encroaching on the trunk: m. serratus anterior—abduction

of the arm, auxiliary muscle of respiration; m. pectoralis