Mellomribs

Mellomribs, a term primarily used in Norwegian, refers to the intercostal muscles located between the ribs. These muscles play a crucial role in respiration, assisting with both inhalation and exhalation. They are composed of external and internal intercostal muscles, each with slightly different fiber orientations and functions to facilitate the complex mechanics of breathing. The external intercostal muscles help to lift the rib cage upwards and outwards, expanding the chest cavity and drawing air into the lungs. The internal intercostal muscles, conversely, contract to pull the rib cage downwards and inwards, aiding in forced exhalation by reducing chest volume.

Beyond their primary respiratory function, the intercostal muscles also contribute to maintaining the structural integrity of the thoracic cage. They provide support and stability, protecting the internal organs within the chest. Injuries to the intercostal muscles, often referred to as a pulled intercostal muscle or rib muscle strain, can occur due to forceful coughing, sudden movements, or direct trauma. Such injuries typically result in localized pain, which can be exacerbated by breathing, coughing, or movement. The term "mellomribs" itself is a direct translation, with "mellom" meaning "between" and "ribs" referring to the bony structures of the rib cage.