Entrails Biography, Entrails Videos, Entrails Similar artist, Entrails Discography, Entrails Tags
You are in : HOME : E : Entrails :Biography Entrails
The digestive tract is the system of organ within multicellular animals
that takes in food, digests it to extract energy and nutrients, and expels
the remaining waste. The major functions of the GI tract are ingestion,
digestion, absorption, and defecation.
The GI tract differs substantially from animal to animal. Some animals
have multi-chambered stomachs, while some animals' stomachs contain a
single chamber. In a normal human adult male, the GI tract is approximately
6.5 meters (20 feet) long and consists of the upper and lower GI tracts.
The tract may also be divided into foregut, midgut, and hindgut, reflecting
the embryological origin of each segment of the tract.
Upper gastrointestinal tract The upper GI tract consists of the mouth,
pharynx, esophagus, and stomach.
· The mouth contains the buccal mucosa, which contains the openings of
the salivary glands; the tongue; and the teeth.
· Behind the mouth lies the pha
