Digestive system
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The document summarizes the structure and function of the digestive system. It describes the digestive tract, which includes the oral cavity, esophagus, stomach, and intestines. It also describes the accessory organs that aid in digestion, such as the teeth, tongue, liver, and pancreas. Finally, it provides details on the histology and functions of the stomach, including the layers of the stomach wall, the cells that produce digestive juices, and how stomach secretions are regulated.
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Gastrointestinal system
The gastrointestinal system runs from the mouth to the anus and is responsible for ingesting and digesting food and excreting waste. It contains the esophagus, stomach, small intestine, large intestine, and associated organs like the liver, gallbladder and pancreas. Food is ingested and broken down through mechanical and chemical digestion before being absorbed in the small intestine and excreted as waste. The gastrointestinal system contains smooth muscle that allows for peristalsis to move food through the tract.
Digestive System Anatomy
The digestive system breaks down ingested food into nutrients that can be absorbed and used by the body. It consists of the alimentary canal and accessory organs. The alimentary canal includes the mouth, esophagus, stomach, and small and large intestines. In the mouth, teeth and tongue break down food and saliva contains enzymes that begin digestion. The stomach stores, churns, and breaks down food further with acid and enzymes. The small intestine completes digestion and absorbs nutrients into the bloodstream through fingerlike villi and microvilli. The large intestine absorbs water before waste is excreted. Accessory organs include the liver, pancreas and gallbladder which produce bile and enzymes to aid digestion
Large intestine
The large intestine is located in the abdomen and is the final section of the gastrointestinal tract. It is around 1.5 meters long and functions to absorb water from undigested waste and move waste through the colon until it is expelled from the body. The large intestine consists of the cecum, colon, rectum, and anus. It is supplied by blood vessels that branch from the superior and inferior mesenteric arteries and drains into the hepatic portal vein.
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This document provides an overview of the digestive system, including the organs and processes involved in digestion. It discusses the anatomy and functions of the mouth, pharynx, esophagus, stomach, pancreas, liver, and gallbladder. The digestive system breaks down food mechanically and chemically and absorbs nutrients to provide energy for cell activities. Accessory organs like the liver, pancreas and gallbladder produce enzymes and bile to further break down food in the small intestine so nutrients can be absorbed and waste eliminated.
Small intestine physiology
The small intestine is responsible for the digestion and absorption of nutrients. It is made up of the duodenum, jejunum, and ileum. The small intestine contains finger-like villi covered in microvilli that increase surface area for absorption. Glands including crypts of Lieberkuhn and Brunner's glands secrete enzymes and mucus. Movement patterns in the small intestine include segmentation contractions that mix contents, peristalsis that propels contents aborally, and villi movements that enhance absorption. Disorders can impair digestion or absorption.
Digestive system - anatomy
The digestive system breaks down ingested food into nutrients that can be absorbed and used by the body. It consists of the alimentary canal and accessory organs. The alimentary canal includes the mouth, esophagus, stomach, small intestine, large intestine, and anus. Accessory organs include the teeth, tongue, salivary glands, liver, gallbladder and pancreas. Food is ingested, digested, absorbed, and waste is eliminated in a multi-step process involving both mechanical and chemical breakdown as well as nutrient absorption throughout the alimentary canal.
Digestive system Anatomy and physiology
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Production of CSF continues
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The document summarizes the key components and functions of the human digestive system. It describes the digestive system as composed of the gastrointestinal tract and accessory organs that break down food into smaller molecules for absorption. The major sections include the mouth, esophagus, stomach, small intestine, liver, pancreas and large intestine. Each organ contributes to digestion through both mechanical and chemical breakdown of food.
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The digestive system breaks down ingested food into nutrients that can be absorbed and used by the body. It consists of the alimentary canal and accessory organs. The alimentary canal includes the mouth, esophagus, stomach, and small and large intestines. In the mouth, teeth and tongue break down food and saliva contains enzymes that begin digestion. The stomach stores, churns, and breaks down food further with acid and enzymes. The small intestine completes digestion and absorbs nutrients into the bloodstream through fingerlike villi and microvilli. The large intestine absorbs water before waste is excreted. Accessory organs include the liver, pancreas and gallbladder which produce bile and enzymes to aid digestion
Large intestine
The large intestine is located in the abdomen and is the final section of the gastrointestinal tract. It is around 1.5 meters long and functions to absorb water from undigested waste and move waste through the colon until it is expelled from the body. The large intestine consists of the cecum, colon, rectum, and anus. It is supplied by blood vessels that branch from the superior and inferior mesenteric arteries and drains into the hepatic portal vein.
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Small intestine physiology
The small intestine is responsible for the digestion and absorption of nutrients. It is made up of the duodenum, jejunum, and ileum. The small intestine contains finger-like villi covered in microvilli that increase surface area for absorption. Glands including crypts of Lieberkuhn and Brunner's glands secrete enzymes and mucus. Movement patterns in the small intestine include segmentation contractions that mix contents, peristalsis that propels contents aborally, and villi movements that enhance absorption. Disorders can impair digestion or absorption.
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The digestive system breaks down ingested food into nutrients that can be absorbed and used by the body. It consists of the alimentary canal and accessory organs. The alimentary canal includes the mouth, esophagus, stomach, small intestine, large intestine, and anus. Accessory organs include the teeth, tongue, salivary glands, liver, gallbladder and pancreas. Food is ingested, digested, absorbed, and waste is eliminated in a multi-step process involving both mechanical and chemical breakdown as well as nutrient absorption throughout the alimentary canal.
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The digestive system digests and absorbs food. It includes the alimentary canal (mouth, esophagus, stomach, small and large intestines) and accessory organs like teeth, tongue, liver, and pancreas. The main functions of the digestive system are ingestion, propulsion, mechanical and chemical breakdown of food, absorption of nutrients, and defecation. The document then describes the anatomy and histology of each part of the digestive system in detail.
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The human digestive system breaks down food through both mechanical and chemical digestion. Food is ingested and broken down mechanically by teeth and enzymes in the mouth, stomach, and small intestine. In the stomach and small intestine, chemicals like acids and enzymes produced by the liver, pancreas, and intestines themselves further break down food into small molecules that can be absorbed into the bloodstream. The digestive system includes the mouth, esophagus, stomach, small and large intestines, and accessory organs like the liver, gallbladder and pancreas that produce digestive juices to break down proteins, lipids, and carbohydrates.
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The gastrointestinal tract has several major functions:
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2. Secretion of enzymes and hormones to aid in digestion. The stomach secretes 2-3 liters of gastric juice per day.
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The digestive system consists of a tube running from the mouth to anus and accessory organs including the liver, pancreas, and salivary glands. The functions of the digestive system include ingestion, digestion, absorption of nutrients, and elimination of waste. The document describes the anatomy and functions of the oral cavity, esophagus, stomach, small intestine, large intestine, and their roles in digestion. It also discusses several diseases that can affect the digestive system.
Digestive system
The document provides information about the digestive system, including both the gastrointestinal tract and accessory digestive organs. It discusses the organs that make up the GI tract, including the mouth, esophagus, stomach, and small and large intestines. It also covers the accessory organs like the liver, gallbladder and pancreas. The document describes the processes of ingestion, digestion, absorption, and defecation. It provides histological details of the layers of the alimentary tract and details of individual digestive organs and their functions.
31 Lecture Ppt
The document summarizes the key components and functions of the digestive system. It describes how animals must obtain and process food through ingestion, digestion, absorption, and elimination. The digestive system includes the mouth, esophagus, stomach, small intestine, pancreas, liver, large intestine, and anus. Each organ plays an important role in mechanical and chemical digestion before nutrients are absorbed and waste is eliminated.
Git system Anatomy & Physiology
The digestive system breaks down ingested food into smaller molecules that can be absorbed and used by the body. It includes the alimentary canal and accessory organs. In the alimentary canal, food is ingested, digested, and absorbed. Accessory organs like the liver, pancreas and gallbladder secrete enzymes and bile to aid in digestion. Nutrients are then absorbed and circulated while waste is eliminated, completing the digestive process.
Unit-II, Chapter_1-Digestive system.ppt
Unit-II: Digestive system,
BP 201T. HUMAN ANATOMY AND PHYSIOLOGY-II (Theory)
B. Pharm. First Year, Sem:-II.
As per PCI Syllabus.
The Digestive System
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Digestive Tract
Digestive tract, including gross anatomy and histology of the mouth, stomach, small intestine and large intestine.
Anatomy of the digestive system
The document summarizes the anatomy and function of the digestive system. It begins with the mouth, which chews and swallows food, and the esophagus, which uses peristalsis to move food to the stomach. The stomach aids digestion and passes food to the small intestine, where most absorption occurs. Nutrients then enter the large intestine where water is absorbed before waste is expelled through the anus. The digestive system breaks down food, absorbs nutrients, and removes waste from the body.
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Digestive system
- 1. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 21 Digestive System Villi of the Small Intestine
- 4. Fig. 21.1
- 8. Fig. 21.2
- 14. Fig. 21.4
- 17. Fig. 21.5
- 19. Molar Tooth in Place in the Alveolar Bone Fig. 21.6
- 21. Fig. 21.7
- 25. Tab. 21.1
- 30. Fig. 21.8
- 33. Anatomy and Histology of the Stomach Fig. 21.10
- 35. Anatomy and Histology of the Stomach
- 36. Fig. 21.10
- 38. Fig. 21.11 HCl production by Parietal Cells in the Gastric Glands of the Stomach
- 41. Cephalic Phase
- 42. Gastric Phase
- 44. Fig. 21.12
- 47. Fig. 21.13
- 49. Fig. 21.14
- 52. Fig. 21.15
- 55. Segmental Contractions Fig. 21.16
- 57. Fig. 21.17
- 59. Fig. 21.18
- 62. Fig. 21.19 Blood and Bile Flow Through the Liver
- 65. Liver, Gallbladder, Pancreas, and Duct System Fig. 21.20
- 67. Fig. 21.21 Control of Bile Secretion and Release
- 69. Fig. 21.22
- 72. Fig. 21.23
- 75. Large Intestine Fig. 21.24
- 78. Fig. 21.25
- 84. Tab. 21.2
- 86. Transport of Monosaccharides Across the Intestinal Epithelium Fig. 21.26
- 89. Transport of Lipids Across the Intestinal Epithelium Fig. 21.27
- 92. Amino Acid Transport Across the Intestinal Epithelium Fig. 21.29
- 95. Page 678