Physiology of digestion pdf
What are the three functions of the digestive system?
The stomach has five functions: digestion of food. secretion of gastric juices as well as mucus which helps to coat its lining, preventing erosion by gastric juices. secretion of gastric hormones. regulation of the rate at which partially digested food is delivered to the small intestine.
What is the physiology of the digestive system?
The digestive system is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow, and repair itself. The six primary processes of the digestive system include: Ingestion of food. Secretion of fluids and digestive enzymes.
What is the general process of digestion?
Digestion is a process of mechanical and chemical breaking down of food into smaller components that can be absorbed into the blood stream. The digestive tract through this process retrieves chief nutrients and converts the unused food into waste. Each organ in the digestive system has a specific function.
What is the most important part of digestion?
The small intestine is a part of the digestive system. It is the most important organ for the digestion of food.
[PDF File]The Digestive System Anatomy of the Digestive System
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1. physical and chemical digestion 2. absorption 3. collect & eliminate nonuseable components of food Human Anatomy & Physiology: Digestive System; Ziser Lecture Notes, 2014.4 2 Anatomy of the Digestive System organs of digestive system form essentially a long continuous tube open at both ends ! alimentary canal (gastrointestinal tract)
[PDF File]THE DIGESTIVE SYSTEM Topic 5: Digestion and Absorption
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digestion of proteins in the stomach • Pepsin (optimal pH ~2) breaks the peptide bond between tyrosine and phenylalanine amino acids, thereby producing peptide fragments and a few individual amino acids • The neutral pH of the duodenum denatures pepsin, rendering it inactive Page 6: Most digestion and absorption occur in the small intestine
[PDF File]The Digestive System
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or microbiome, help with digestion. Parts of the nervous and circulatory systems also play roles in the digestive process. Together, a combination of nerves, hormones, bacteria, blood, and the organs of the digestive system completes the complex task of digesting the foods and liquids a person consumes each day. Stomach Mouth Small intestine
[PDF File]The Digestive System
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molecules , or zymogens , so that the risk of self –digestion within the pancreas is minimized . More than 98% of the pancreas mass is devoted to its exocrine function: the secretion of pancreatic juice by the pancreatic acini and their ductile cells. Ductile cells produce Sodium bicarbonate which helps neutralize the acidic gastric contents .
[PDF File]Digestive Physiology
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Anatomy & Physiology: Digestive System, Ziser, 2003 2 need to convert food into a form that can be absorbed and used by body cells two types of digestion: physical digestion breaking large pieces down into smaller pieces chemical digestion breaking large molecules (proteins, fats, starches, etc) into small molecules (amino acids, fatty acids ...
[DOC File]UNIT PLAN: HUMAN BODY SYSTEMS
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1.2 Students will describe the systems which perform the necessary life functions of circulation and digestion (GLE 1.2.6). 1.3 Students will describe the organs in the digestive and circulatory systems and their functions (GLE 1.2.8). 1.4 Students will describe the relationships between the digestive and circulatory systems (GLE 1.2.8).
[DOC File]DIGESTIVE SYSTEM WEBQUEST
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DIGESTIVE SYSTEM WEBQUEST. Objectives: Be able to identify the specific parts of the organs within the . digestive system. 2. Explain the movement of food through the digestive tract.
Visible Body - Virtual Anatomy to See Inside the Human Body
In this lab, you will mimic the stages of digestion using the supplies provided. Upon completion of each step, fill in the chart identifying what each of the activity items represents. To review the role of the digestive system, use the Gastrointestinal Physiology assets presented in the Physiology & Pathology app by Visible Body.
[DOC File]Lesson 3 | The Excretory System - Fulda
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Digestion and Excretion 49 Name Date Class Lesson Outline continued. D. The Excretory System and Homeostasis. 1. The excretory system helps maintain in two ways. It filters wastes from the and removes wastes from the system. 2. A hormone controlled by the causes the tubules in the kidney to absorb more water from the blood.
[DOCX File]Anatomy and Physiology Unit 1 Review Sheet
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Anatomy and Physiology Unit 1 Review SheetName _____ Chapter 1. Date _____ Hour ___ _____ investigates the body's structure, whereas _____ investigates the processes or functions of living things. ... Digestion, Responsiveness to Environment, Metabolism, Excretion, Reproduction, and Growth. Explain how two organ systems help the human body ...
[DOC File]Chapter 1: Introduction to Human Anatomy and Physiology
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Digestive Mouth, teeth, pharynx, esophagus, stomach, small intestine, large intestine, liver, gall bladder, and many glands including the pancreas Function: Breakdown of food substances into simpler forms that can be absorbed (digestion). 7. Circulatory Heart, blood vessels, blood. Function: Transports materials throughout the body.
[DOCX File]Anatomy-Physiology Semester 1 Final Study Guide
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What is anatomy and physiology? Anatomy – study of structure; physiology – study of function; structure determines function. What are the characteristics of life? (Remember, there is 1 more than the book says.) Responsiveness, conductivity, growth, respiration, digestion, absorption, secretion, excretion, circulation, reproduction
[DOC File]ANATOMY AND PHYSIOLOGY VOCABULARY
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133. duoden- 1st part of small intestine. Duodenal digestion: Duoden (duodenum) + al (related to) digestion. 134. jejun 2nd portion of small intestine. Jejunal feeding tube: Jejun (jejunum) + al (relating to). A tube inserted into the jejunum to help administer liquids. 135. …
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