👉 Perichondrium is a structure found in the thoracic cavity, located between the diaphragm and intercostal muscles. It's an important part of the respiratory system, where it protects the airways by providing support to the lungs during breathing. The perichondrium typically contains two types of cells: the myofibroblasts (myofibrillar cells) and the pericardial cells. Myofibroblasts are responsible for producing collagen fibers that
