brjóstkassans

Brjóstkassans is the Icelandic term for the rib cage. The rib cage is a bony structure in the thorax that protects the vital organs of the chest, primarily the heart and lungs. It is composed of ribs, the sternum (breastbone), and the thoracic vertebrae. There are typically 12 pairs of ribs, although variations can occur. The ribs are curved bones that attach posteriorly to the thoracic vertebrae. Anteriorly, most ribs connect to the sternum, either directly via cartilage or indirectly. The uppermost ribs and the lowest ribs have different attachment patterns. The sternum is a flat, elongated bone located in the midline of the anterior chest wall. The rib cage plays a crucial role in respiration, expanding and contracting to facilitate breathing. It also provides attachment points for muscles of the chest, back, and shoulders. The protective function of the brjóstkassans is essential for survival, as it shields these delicate internal organs from external trauma.