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The Digestive System Functions Types of digestion

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Presentation on theme: "The Digestive System Functions Types of digestion"— Presentation transcript:

1 The Digestive System Functions Types of digestion
Break down food and absorb it in the body 4 steps food goes through Ingestion Digestion Absorption elimination Types of digestion Mechanical Chemical Organs Mouth Esophagus Stomach Small intestine Large intestine Liver Gallbladder Panaceas Bacteria

2 Function of the Digestive System
digest food and make food usable as building blocks and source of energy Explain the 4 Steps Food Goes Through 1. Ingestion – act of eating or putting food in your mouth 2. Digestion – mechanical and chemical breakdown of food into smaller particles and molecules that body can absorb and use 3. Absorption – nutrients and water are taken in (absorbed) 4. Elimination – removal of undigested food and other wastes form the body

3 Describe the 2 Types of Digestion
Mechanical – food is physically broken into smaller pieces (mouth, stomach) Chemical – chemical reactions break down food into smaller pieces (stomach, small intestine, mouth) Copy into your notes Peristalsis: muscle contractions that move food through the digestive system(esophagus, intestines) Enzyme: Proteins that break down large molecules into smaller molecules

4 *Mouth - amylase *Epiglottis *Rectum/Colon *Salivary Glands Esophagus-
Liver- Stomach- Gallbladder- Pancreas – Small Intestine- Large Intestine- *Rectum/Colon 

5 Urinary System pg 119 Function: produces, stores and removes liquid waste from the body.

6 Urinary System WIDER3 (pg 499-502)
Word (pg #) Illustration Definition Example/ Analogy Related Terms (3) Kidney Nephrons Urine 1st Filtration/2nd Filtration Ureter Bladder Urethra

7 Excretory System System : Function: Organs: System : Function: Organs: Excretory System Function: System : Function: Organs: System : Function: Organs:


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