Chief Cells Digestive System Amylase: breaks down starches (complex carbohydrates) 2. The buccal cavity has a number of teeth and a muscular tongue. The digestive tract is lined with epithelial tissue tissue made up of many types of cells, e.g. Most of the cells are absorptive cells; interspersed among them is a small number of mucus-producing goblet cells that appear as tear shaped dots of a lighter color. In the human digestive system, large organic masses are broken down into smaller particles that the body can use as fuel. THE DIGESTIVE SYSTEM D. C. Mikulecky Faculty Mentoring Program Virginia Commonwealth University FUNCTIONS OF THE DIGESTIVE SYSTEM Motility Secretion Digestion Absorption Motility The digestive tract is surrounded by layers of smooth muscle These muscles enable mixing and propulsive movement to be carried out by the digestive tract Secretion Digestion … Once this layer is removed, one can make out a number of pores known as gastric pits. The digestive system prepares nutrients for utilization by body cells through six activities, or functions: ingestion, mechanical digestion, chemical digestion, movements, absorption, and elimination. In the main body of the stomach, chief cells produce digestive enzymes; however, upon injury, they undergo rapid proliferation for prompt tissue regeneration. All of the following are true of the stomach EXCEPT? Gastric chief cell The structure and function of digestive cells is … They are found in the stomach and in the parathyroid. Choose your answers to the questions and click 'Next' to see the next set of questions. Chapter 14: Digestive System - Digestive system: Part 2 Mucosa. Gastric chief cells are generally located deep in the mucosal layer of the stomach lining, in the fundus and … Oral Cavity. TRACT MOVEMENT OF FOOD SECRETION OF DIGESTIVE JUICES ABSORPTION OF DIGESTED FOODS, WATER, AND ELECTROLYTES . Bicarbonates are useful in the GI tract to neutralize hydrochloric acid. ... 3- Chief cells: Sec. Pepsinogen is activated into the digestive enzyme pepsin when it comes in contact with acid produced by gastric parietal cells. Pepsinogen is activated into the digestive enzyme pepsin when it comes in contact with acid produced by gastric parietal cells. 2. Ques. 2. The oral cavity, or mouth, is the point of entry of food into the digestive system, illustrated in Figure 34.9. Immediately afterward, though, the enzymes of the small intestine function at a pH between 6.0 and 7.4, resulting in more than a million-fold change in hydrogen ion concentration in the span of a few centimeters. Ch.23 Digestive System Chemical digestion is the process of chemically breaking down food into simpler molecules. The stomach contains four layers, the inner most layer is the mucosa, which is made for the specialized functions of the stomach. Muscularis Mucosae | IC/OL SMC layer & third circular SMC layer. Digestive System Histology | PDF | Stomach | Small Intestine
