food while chewing. Saliva helps break the food into smaller pieces. These small pieces travel down the esophagus to the stomach after being swallowed. Next‚ is the location where digestion starts‚ the stomach. Food enters the stomach through a valve after the chewed food passes the bottom of the esophagus. Gastric glands in the stomach produce acidic gastric juices. As the stomach wall contracts‚ these juices help to mix the food and make a partial liquid. Once this liquid mixture forms‚ it moves
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transports saliva‚ liquids‚ and foods from the mouth to the stomach. The muscular layers that form the oesophagus are closed tightly at both ends by sphincter muscles‚ to prevent food or liquids from leaking from the stomach back into the oesophagus or mouth. The main function of the stomach is to break down and digest food in order to extract necessary nutrients from what you have eaten. In order for this to happen‚ it is necessary that the stomach‚ the digestive glands and the intestines must
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movement of the stomach to mix its contents d) the rhythmic contractions of the diaphragm to produce hiccups 2. Arrange the following parts of the digestive system in the order in which food passes through on the way from the mouth to the anus. Esophagus‚ stomach‚ small intestine‚ colon‚ pharynx‚ caecum‚ rectum‚ 3. Match the region of the digestive system in the list below with the correct function. A. Rectum‚ B. Pancreas‚ C. Functional caecum‚ D. Pharynx‚ E. Stomach‚ F. Gall bladder
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Principles of Human Physiology‚ 4e (Stanfield) Chapter 20 The Gastrointestinal System 20.1 Multiple Choice Questions 1) Which of the following is NOT a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Answer: B Diff: 4 Page Ref: 568 2) Which of the following is the correct order of the layers of the gastrointestinal tract wall‚ from lumen to external surface? A) mucosa submucosa muscularis externa serosa
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Ruminant Digestive system The digestive system of ruminants like cattle enables them to efficiently use high roughage feedstuffs‚ including forages. Their digestive system is composed of the mouth‚ tongue‚ gall bladder‚ pancreas‚ the four compartment stomach (rumen‚ reticulum‚ omasum‚ and abomasum)‚ salivary glands‚ the small intestine (duodenum‚ jejunum‚ and ileum)‚ esophagus and the large intestine (cecum‚ colon‚ and rectum) (Brooker‚ 5). Mouth and Teeth A ruminant animal uses its mouth and tongue
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JarynaLimbauan IV-A BSBT Euriz Ramos Strategy: Lecture I. Objectives At the end of the lesson‚ the students are expected to: 1. Identify the structure and components of gastrointestinal tract; 2. Initiate consciousness in maintaining a healthy gastrointestinal tract; 3. Observe slides of rugae and villi layers. II. Subject Matter Topic: Gastrointestinal Tissues III. Materials A. PowerPoint presentation 1. Parts and Function of Gastrointestinal Tissues
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it with digestive secretions. If the ulcer eats through the muscularis it may be difficult for digestion to occur. B) If Zach has a peptic ulcer affecting his stomach or duodenum‚ which components of the peritoneum will be affected? If the ulcer isn’t taken care of right‚ or is untreated for a while it may eat a hole through the stomach wall and/or duodenum‚ and cause food that hasn’t been fully digested and bacteria to spill into the peritoneum. When this happens it can cause inflammation in the
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Name: __________________________ Date: _____________ |Link to: 23.1 The GI tract| 1.|Which of following processes is the function of the smooth muscle layer of the digestive system?| A)|Ingestion| B)|Secretion| C)|Mixing and propulsion| D)|Absorption| E)|None of the above| Ans:|C| |Link to: 23.1 The GI tract| 2.|Which of following processes is the primary function of the mouth?| A)|Ingestion| B)|Secretion| C)|Mixing and propulsion| D)|Absorption| E)|None of the above| Ans:|A|
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mucosa. You may lose some control of defacation. B. If Zach has a peptic ulcer affecting his stomach or duodenum‚ which components of the peritoneum will be affected a. If the ulcer eats a hole into the wall of the stomach‚ bacteria and partially digested food can spill through h the opening into the peritoneum causing severe inflammation of the abdominal cavity and wall. C. How can Zach’s stomach contribute to the formation of ulcers in other parts of the G.I. tract? Which cells are direct
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into the stomach by the action of peristalsis. Gastric juice in the stomach starts protein digestion. Gastric juice mainly contains hydrochloric acid and pepsin. As these two chemicals may damage the stomach wall‚ mucus is secreted by the stomach‚ providing a slimy layer that acts as a shield against the damaging effects of the chemicals. At the same time protein digestion is occurring‚ mechanical mixing occurs by peristalsis‚ which are waves of muscular contractions that move along the stomach wall
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