Digestion size of the meal, and the process of digestion normally takes between 24 and 72 hours. Digestion begins in the mouth with the secretion of saliva and its digestive enzymes. Food is formed into a bolus by the mechanical mastication and swallowed into the esophagus from where it enters the stomach through the action of peristalsis. Gastric juice contains hydrochloric acid and pepsin which would damage the walls of the stomach and mucus is secreted for protection. In the stomach further release of enzymes break down the food further and this is combined with the churning action of the stomach.
Acetic acid (medical use) 25 USD. Acetic acid is more commonly used for external ear infections in the developing world than the developed. Acetic acid may be applied to the cervix to help detect cervical cancer during screening in many areas in the developing world. Acetic acid is applied to the cervix and if an area of white appears after about a minute the test is positive. Acetic acid (medical use) Acetic acid, which at low concentrations is known as vinegar, is used as a medication to treat a number of conditions. As an eardrop it is used to treat infections of the ear