The esophagus differs from the rest of the gastrointestinal tract because it ... a) ... has smooth muscles in the upper part and striated muscles in the lower part. b) ... has villi and microvilli to increase the surface area. c) ... lacks mucosa. d) ... has striated muscles in the upper part and smooth muscles in the lower part. e) ... is not innervated.

Q: Name the regions of the large intestine in order from cecum to anus?

A: Digestion is a process of breaking down the complex food material into simpler forms for promoting…

Q: What is the function of the Gallbladder and the pancreas in the Digestion Process?

A: Digestion is a complex process, which involves the breakdown of food into smaller components until…

Q: Explain Structure of the Gastrointestinal Tract Wall?

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: Which portions of the colon are retroperitoneal?

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Q: In what ways will digestion be compromised when afflicted with a medical condition along the GI…

A: The digestive system is made up of the gastrointestinal tract (GI tract) or digestive tract and…

Q: What is the structure of the gastric gland, including the cells types that comprise it? What are the…

A: The gastric glands places an important role in the process of digestion. It is located at different…

Q: Which components of the digestive system are GI tract organs, and which are accessory digestive…

A: The GI tract of the digestive system consists of a series of hollow organs that help to breakdown…

Q: What are the two sources that the liver receives blood from and which provides the greatest supply?

A: The human body is a well built machine in which all the organs coordinate together to make it work.…

Q: What are the three divisions of the small intestine?

A: Small Intestine is an organ in the gastrointestinal tract where most of the end absorption of…

Q: What is the major function of the Gastrointestinal tract?

A: Digestion is the process by which complex food substances are converted into simpler ones. Both…

Q: Which portion of the small intestine is the longest?

A: Ileum is the last and longest part of small intestine.

Q: Name the three regions of the small intestine and describe the distinctive features of each one?

A: The human body is a well built machine in which all the organs coordinate together to make it work.…

Q: What is the maximum volume of the stomach?

A: The stomach is the organ of humans and many invertebrates. It is muscular and hollow and a vital…

Q: Identify the layers of the wall of the digestive tract?

A: The long tube-like structure that opens at the mouth and ends at the anus, forms nearly 9 meters in…

Q: How are the liver and gallbladder connected to the duodenum?

A: The liver, pancreas, and gall bladder are accessory organs of the digestive system. The liver…

Q: Why is there a need to increase the surface area intestines?

A: Intestine:           The word intestine is derived from a Latin root word meaning 'internal' and…

Q: Describe the structure and function of the stomach?

A: Step 1 The digestive tract or alimentary canal is a long hollow, coiled muscular, and glandular tube…

Q: Describe the histological structure and function of each of the four layers of the alimentary canal…

A: The alimentary canal is a long tube starting from mouth and ends at anus and it plays a primary role…

Q: How does the muscularis of the large intestine diff er from that of the rest of the gastrointestinal…

A: The muscularis of the large intestine differ from the rest of the GI tract because: Muscularis of…

Q: Why is the internal surface of the small intestine arranged into progressively smaller folds? What…

A: The small intestine is the longest part of the gastrointestinal tract which is modified for the…

Q: What are the main features of the intestinal phase?

A: gastric secretion occurs in three phases- CEPHALIC, GASTRIC, AND INTESTINAL PHASE A. CEPHALIC- it…

Q: What is the adult gastrointestinal tract/ What is its role?

A: Gastrointestinal tract is found in kids as well as in adults.

Q: What covers the surface of the GI tract to increase surface area, absorption and motility?

A: The human body is a well built machine in which all the organs coordinate together to make it work.…

Q: Explain why levels of gastrin are elevated during Zollinger-Ellison Syndrome?

A: The digestive system consists of various organs that begin from the mouth and end in the anus whose…

Q: What are the major regions of the large intestine?

A: The last portion of the digestive system that helps in the absorption of excess water and removal of…

Q: What makes the surface area of the small intestine so large, when it is only about 6 meters long?

A: The process of breakdown of large food molecules into smaller molecules so that they can be digested…

Q: What is The function of the fundus of the gallbladder ?

A: The gallbladder is a small and hollow organ that is attached to the digestive system by a system of…

Q: Which substances resulting from digestion of carbohydrate,protein, and fat molecules does the small…

A: Digestion is the breakdown of enormous insoluble food atoms into little water-solvent food particles…

Q: Describe the structure of the gastrointestinal tract wall

A: The gastrointestinal tract of the human body is a hollow tract. This tract comprises of the mouth,…

Q: Where does most digestion in the small intestine take place?

A: Digestion is a process of break down of ingested food physically(by teeth,muscles of stomach ) and…

Q: What are the small ducts that drain bile directly into the gallbladder from the liver?

A: The gallbladder is one of the accessory digestive organs. It is a sac-like organ that is attached to…

Q: What factors influence the small intestine's absorption capacity?

A: The cells on the microvilli are composed of full of tiny finger-like structures which helps to…

Q: Which part of the digestive system primarily absorbs water?

A: A normal person takes in roughly 1 to 2 litres of dietary fluid every day. Apart from that  6 to 7…

Q: What is the primary function of the large intestine?

A: The digestive system consists of organs of the mouth including salivary glands, teeth, tongue,…

Q: Which part of the digestive system is this?

A: The above image represents the Hematoxylin and eosin (H and E) staining of the small intestine of…

Q: Pig Mouth Teeth Esophagus Stomach Small intestine Large intestine Anus Which of the structures…

A: 1. Structures that are associated with ingestion are - Mouth, Teeth 2. Structures that are…

Q: What are the functions of the acidic gastric juices in the stomach?

A: Gastric juice is secreted by the gastric gland. Gastric gland have three types of secretory cells:…

Q: Distinguish the overall structure of a gastrovascular cavity from that of an alimentary canal

A: Digestion is the process of conversion of larger molecules into smaller and simpler molecules, which…

Q: What are the basic layers of the wall of alimentary canal?

A: Alimentary canal is the tract through which the food passes from mouth to the anus. It is also known…

Q: Why does digestion have to come before absorption?

A: Process of Digestion starts in mouth. Process of digestion causes the conversion of food into small…

Q: Why does the alimentary canal allow for more specialized processing of food than gastrovascular…

A: Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules…

Q: What is the mechnical and chemical digestive process of eating a chicken sandwich? What roles does…

A: Digestion is the process of breakdown of large insoluble food molecules into small water-soluble…