THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

Detailed explanation-2: -The diaphragm plays a critical role in the respiratory system. When you breathe in, your diaphragm contracts (tightens) and flattens, moving down towards your abdomen. This movement creates a vacuum in your chest, allowing your chest to expand (get bigger) and pull in air.

Detailed explanation-3: -The diaphragm has a dome-like structure with the peripheral segment attached to the chest wall and abdominal cavity. The muscle fibers from these attachments converge in a central tendon, which forms the crest of the dome.

Detailed explanation-4: -The diaphragm is the most efficient muscle for breathing. It’s a large, dome-shaped muscle located at the base of your lungs. Your abdominal muscles help move the diaphragm and give you more power to empty your lungs.