The mucus from your stomach lining, or that is swallowed, can appear in your vomit. Mucus from postnasal drip and coughing can also induce vomiting, particularly in children. The stomach lining ...

Medically reviewed by Susan Russell, MDRemoving mucus from the lungs is an important part of managing certain health conditions, such as bronchiectasis and chronic obstructive pulmonary disease (COPD) ...

Foveolar cells and mucous neck cells secrete bicarbonate and mucus. Parietal cells secrete hydrochloric acid. Chief cells secrete pepsinogen. Enteroendocrine cells secrete various hormones. However, ...

Stomach acid is hydrochloric acid and, while it does us no harm, it is strong enough to kill any pathogens that have been caught in mucus in the airways or consumed in food or water. Stomach acid ...