What are the 4 main parts of the lower GI tract?
For the purposes of endoscopy, the upper GI tract includes the esophagus, stomach and duodenum (esophagogastroduodenoscopy [EGD] or upper GI endoscopy [UGIE]), and the lower GI tract includes the anus, rectum, colon, and cecum (anoproctocolonoscopy or lower GI endoscopy).
What are the four accessory organs of the digestive tract quizlet?
Accessory digestive organs or structures aid digestion physically and produce secretions that break down foodstuff in the GI tract; the organs involved are the teeth, tongue, gallbladder, salivary glands, liver and pancreas.
What are the 4 layers of the wall of the GI tract in which organs areas are they different?
The GI tract contains four layers: the innermost layer is the mucosa, underneath this is the submucosa, followed by the muscularis propria and finally, the outermost layer – the adventitia. The structure of these layers varies, in different regions of the digestive system, depending on their function.
What are the major organs of the GI system?
The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
What are the accessory organs?
The accessory organs are the teeth, tongue, and glandular organs such as salivary glands, liver, gallbladder, and pancreas. The digestive system functions to provide mechanical processing, digestion, absorption of food, secretion of water, acids, enzymes, buffer, salt, and excretion of waste products.
What are the 4 main functions of the digestive system?
Motility, digestion, absorption and secretion are the four vital functions of the digestive system. The digestive system breaks down the foods we eat into energy our bodies can use.
What are the 4 tissues in the stomach?
Anatomy of the Stomach
- Mucosa. This is the first and innermost layer or lining.
- Submucosa. This second layer supports the mucosa.
- Muscularis. The third layer is made of thick muscles.
- Subserosa. This layer contains supporting tissues for the serosa.
- Serosa. This is the last and outermost layer.
What are the four layers of the stomach?
Layers of Stomach Wall Layers of the stomach wall, among others, include serosa, muscularis, submucosa, mucosa.
How many accessory organs are there?
three accessory organs
There are three accessory organs of the digestive system. The has many functions, some of which are producing bile, converting glucose to glycogen, and breakdown of toxic substances.
What are the 7 accessory organs of the digestive system?
The alimentary tract of the digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large intestines, rectum and anus. Associated with the alimentary tract are the following accessory organs: salivary glands, liver, gallbladder, and pancreas.
What are four functions of the gastrointestinal system quizlet?
What are the four main functions of the digestive system? Ingestion, Digestion, absorption and elimination of waste.
What is the sequence of organs in the GI tract?
The organs that make up your GI tract, in the order that they are connected, include your mouth, esophagus, stomach, small intestine, large intestine and anus.