The digestive system consists of two parts, the digestive canal and the digestive gland.
The digestive canal extends from the mouth to the pharynx, esophagus, stomach, small intestine, large intestine, and ends at the anus. This long muscular canal is collectively called the digestive canal, and the digestive canal includes the oral cavity, pharynx, esophagus, stomach, small intestine (duodenum, jejunum, ileum) and large intestine (cecum, colon, rectum).
Digestive glands are divided into two types: small and large digestive glands. The small digestive glands are distributed in the walls of each part of the digestive canal, while the large digestive glands have three pairs of salivary glands (parotid, submandibular and sublingual), liver and pancreas, all of which discharge secretions into the digestive canal through ducts.
According to the human body model from Meiwo, we can see the whole content of our human digestive system. From the upper right side of the head and neck, we can clearly see the skull cavity, nasal cavity, oral cavity and other structures of our human body, and sequentially, the esophagus, stomach, intestine, liver and pancreas in the digestive system. Among them, the organs of the human body are connected according to their normal physiological positions, and the esophagus, stomach, intestine, and liver in the human body model can be disassembled, which is convenient for individual organ tube demonstration and use.