Acidity. Our stomach produces acid to digest the food that we eat. This is a regular and natural process. Whenever we eat, cells within the lining of the stomach pump acid to liquefy your sumptuous dinner, from mash potatoes to a slab of steak.ur stomach produces acid to digest the food that we eat. This is a regular and natural process. Whenever we eat, cells within the lining of the stomach pump acid to liquefy your sumptuous dinner, from mash potatoes to a slab of steak.
2. Thoracic cavity: thoracic means chest, this cavity is located in the anterior portion of the body and the mediastinum. It contains the cavity that surrounds the breast bone and ribs. Containing the lungs, heart, trachea, larynx and bronchial tubes.
The nasal cavity is part of the human respiratory system. Also known as the nasal fossa, it is a small air-filled chamber behind the nose, connected via the pharynx to the l â¦ arynx (voicebox) and the trachea.Above and in front of the nasal cavity are the sinuses (paranasal cavities), located inside the facial bones.he nasal cavity is part of the human respiratory system. Also known as the nasal fossa, it is a small air-filled chamber behind the nose, connected via the pharynx to the l â¦ arynx (voicebox) and the trachea.