The human digestive system begins in the mouth and ends at the anus. Enzymes in saliva break food down into smaller particles in the mouth. Food is then swallowed and goes through the digestive tract before leaving the b... More »

Physical digestion is the physical process of breaking down food into smaller pieces that can easily be accessed by digestive enzymes, without making any chemical changes, whereas chemical digestion refers to the process... More »

According to Branch Basics, digestion begins in the mouth when the process of chewing starts. Salivary glands will secrete a mucus, which assists in lubricating the food before swallowing. More »

Food enters the human digestive system through the mouth before then moving through the pharynx, esophagus, stomach, intestines, rectum and anus. In the mouth, food is chewed and broken down into small pieces suitable fo... More »

Consuming highly acidic foods reduces the digestion capacity of the human digestive system. This occurs as the net result of acid accumulation in the body that typically gives rise to a condition termed as heartburn or a... More »

www.reference.com Health Conditions & Diseases Gastrointestinal Issues

Mucous membranes are located in the mouth, nasal passages, throat, stomach, eyelids, intestines, anus and vulva. They can be thought of as special outer coverings that allow for the easy exchange of nutrients and waste p... More »

The main function of the gullet, otherwise known as the esophagus, is to transfer food and drinks from the mouth to begin digestion in the stomach, according to University of Maryland Medical Center. The muscles of the e... More »