intro to human digestive system

1. Digestive System (pg 8)

2. Digestive System (pg 8)
• Function: Breaks down food physically and
chemically into nutrient molecules and
absorbs those nutrients into the bloodstream

3. Digestive Tract
• A long continuous tube that food moves
through

4. Digestive Tract
• A long continuous tube that food moves
through
1. Mouth

5. Digestive Tract
• A long continuous tube that food moves
through
1. Mouth
2. Esophagus: tube that runs from mouth to
stomach

6. Digestive Tract
• A long continuous tube that food moves
through
1. Mouth
2. Esophagus: tube that runs from mouth to
stomach
3. Stomach: Churns food and mixes it with
digestive enzymes and acid

7. Digestive Tract
• A long continuous tube that food moves
through
1. Mouth
2. Esophagus: tube that runs from mouth to
stomach
3. Stomach: Churns food and mixes it with
digestive enzymes and acid
4. Small Intestine: Finishes digestion and
absorbs nutrients

8. Digestive Tract
• A long continuous tube that food moves through
1. Mouth
2. Esophagus: tube that runs from mouth to
stomach
3. Stomach: Churns food and mixes it with
digestive enzymes and acid
4. Small Intestine: Finishes digestion and absorbs
nutrients
5. Large Intestine: Absorbs water, eliminates waste

9. Accessory Organs
• Produce fluids that enter the digestive tract

10. Accessory Organs
• Produce fluids that enter the digestive tract
1. Liver: Produces bile (which helps digest fat),
stores vitamins, detoxifies poisons

11. Accessory Organs
• Produce fluids that enter the digestive tract
1. Liver: Produces bile (which helps digest fat),
stores vitamins, detoxifies poisons
2. Gallbladder: Stores and concentrates bile

12. Accessory Organs
• Produce fluids that enter the digestive tract
1. Liver: Produces bile (which helps digest fat),
stores vitamins, detoxifies poisons
2. Gallbladder: Stores and concentrates bile
3. Pancreas: Produces digestive enzymes

13. Accessory Organs
• Produce fluids that enter the digestive tract
1. Liver: Produces bile (which helps digest fat),
stores vitamins, detoxifies poisons
2. Gallbladder: Stores and concentrates bile
3. Pancreas: Produces digestive enzymes
4. Salivary glands: Produce saliva