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Digestive System

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Page 1: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Digestive System

Page 2: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Digestive System Food must be broken down into nutrients in a form the body can use.

The breaking down of food into simpler substances for use by the body is the job of the digestive system.

The digestive system is a coiled, muscular tube (6-9 meters long) beginning with the mouth and ending with the anus

Page 3: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

DigestionDigestion is the process by which food is converted into soluble forms

Digestive System Notes7th Grade Science

Unit 4

Page 4: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Forms of Digestion

Page 5: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Stages of Digestion

Page 6: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Primary Digestive Organs

Page 7: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Peristalsis

Page 8: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Primary Digestive Organs (cont’d)

Rectum – temporary storage site for solid waste

Page 9: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Accessory Digestive Organs

Page 10: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances
Page 11: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Care of the Digestive System• Eat foods that are high in fiber like fruits and vegetables

Drink plenty of water

Chew your food completely before you swallow

Avoid foods high in fat

Page 12: Digestive System. Digestive System Food must be broken down into nutrients in a form the body can use. The breaking down of food into simpler substances

Digestive Disorders

• A. Ulcers - spot in stomach lining where cells are destroyed, lining unprotected, irritated by stomach acid

• B. Gastritis - swelling of stomach lining, caused by irritating foods, alcohol, or bacteria

• C. Acid Reflux - "back washing" of acid from the stomach into the esophagus; also called heartburn


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DIGESTIVE SYSTEM ORGANS DIGESTIVE SYSTEM BROKEN DOWN INTO 2 PARTS 1. Alimentary Canal – gastrointestinal (GI Tract) – Path that food travels 2. Accessory

The Digestive System - tcss.net · Digestive System at a Glance • Your digestive system is a group of organs that break down food so that it can be used by the body. • Food passes

DIGESTIVE SYSTEM. WHAT IS THE JOB OF THE DIGESTIVE SYSTEM? TO BREAK DOWN FOOD INTO BIOMOLECULES THAT CELLS CAN USE

Digestive System. 2 Types of Digestion Mechanical – Breaks down food PHYSICALLY/MECHANICALLY Chemical – Breaks down food using CHEMICALS

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The Digestive System Chapter 24. The Digestive System The digestive system –Takes in food –Breaks it down into nutrient molecules –Absorbs the nutrient

The Digestive System Functions: 1.Takes food into the body 2.Breaks down food 3.Absorbs digested materials

The Digestive System Functions to break down food substances into forms that can be absorbed

The Digestive System Food, Glorious Food!. Functions Take in food ingestion Physical & chemical break down of food digestion Absorption of nutrients

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The Digestive System. How is food digested? Digestion involves: Breaking down of food into smaller pieces Breaking down of food into smaller pieces The

KEY CONCEPT The digestive system breaks down … · KEY CONCEPT The digestive system breaks down food. ... involved in speech and water removal ... Human Biology Other organs aid

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Digestive System Breaks down food into nutrients

Digestive System...The digestive system can be broken down into two main parts: The digestive tract The path that food travels along The digestive glands These produce the chemical

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Digestive & Excretory Systems Ch. 48. Digestive System Functions: -Breaks down food into molecules the body can use. -Molecules are absorbed into the

Digestive System Human Digestive System has two key functions: –Breaking down of large food into smaller, usable molecules –Absorbing these smaller molecules

KEY CONCEPT The digestive system breaks down food.€¦ ·  · 2005-12-08KEY CONCEPT The digestive system breaks down food. PROCEDURE ... Drop 5 mL of dish detergent into the test

Human Digestive System. Ingest food Break down food Move through digestive tract Absorb digested food and water Eliminates waste materials HowStuffWorks

The digestive system. I-The digestive system Digestion Digestion is the mechanical and chemical breaking down of food into smaller components that can

THE DIGESTIVE SYSTEM - fatimaphysed.weebly.com · The functions of the Digestive System Take food into the body through the mouth.(Ingestion) Break food down into smaller particles

The Digestive & Urinary Systems Chapter 10 – Section 1 Digestive system: the organs that break down food so that it can be used by the body Digestive

Digestive System Role of the digestive system: ingest food break food down into small molecules that can cross plasma membranes absorb nutrient molecules