16-3 Final Digestion and Absorption
description
Transcript of 16-3 Final Digestion and Absorption
16-3 Final Digestion and Absorption
What Happens in the Small Intestine?
Small intestine - p.526
• The part of the digestive system in which most chemical digestion takes place.
Small intestine - p.526
Small Intestine
Small intestine - p.526
Liver - p.527
• The largest and heaviest organ inside the body.
• The liver produces bile
Liver - p.527
Liver - p.527
Bile - p.527
• A substance produced by the liver that breaks up fat particles.
Bile - p.527
Bile - p.527
Gallbladder - p.527
• The organ that stores bile after it is produced by the liver.
Gallstones
Gallstones
Pancreas - p.528
• A triangular organ that produces enzymes that flow into the small intestine
Pancreas - p.528
Pancreas - p.528
Circulatory System
Villi - p.528
• Tiny finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed.
Villi - p.528
Villi - p.528
What Happens in the Large Intestine?
Large intestine - p.529
• The last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body.
Large intestine - p.529
Large intestine - p.529
Rectum - p.529
• A short tube at the end of the large intestine where waste material is compressed into a solid form before being eliminated.
Rectum - p.529
Rectum - p.529
Exiting the Body
Anus - p.542
• The opening at the end of an organism’s digestive system through which wastes exit.
Anus - p.542