EVERYDAY SCIENCE

Detailed explanation-1: -Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.

Detailed explanation-2: -The diaphragm is the primary muscle used in respiration, which is the process of breathing. This dome-shaped muscle is located just below the lungs and heart. It contracts continually as you breathe in and out.

Detailed explanation-3: -This muscle, also called the thoracic diaphragm, plays an important role in breathing as its alternating movement helps you to inhale and exhale. Other diaphragm functions include a role in urination and bowel movements, and assisting the lymphatic system in maintaining lymph flow through the body.

Detailed explanation-4: -Lungs: Two organs that remove oxygen from the air and pass it into your blood.

Detailed explanation-5: -The diaphragm is attached to the base of the sternum, the lower parts of the rib cage, and the spine. As the diaphragm contracts, it increases the length and diameter of the chest cavity and thus expands the lungs. The intercostal muscles and neck muscles help move the rib cage and thus assist in breathing.