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Digestive system

Digestive system. By Vinh Ngo & Taylor Plecity. Organs involved. Mouth Esophagus Stomach Small intestine Large Intestine (colon) Rectum Anus. Organs that help with digestion . Tongue Glands in the mouth that make saliva Pancreas Liver Gallbladder. Steps of digestion .

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Digestive system

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  1. Digestive system By Vinh Ngo & Taylor Plecity

  2. Organs involved • Mouth • Esophagus • Stomach • Small intestine • Large Intestine (colon) • Rectum • Anus

  3. Organs that help with digestion • Tongue • Glands in the mouth that make saliva • Pancreas • Liver • Gallbladder

  4. Steps of digestion • 1. ingestion (entering food) • 2. mastication (chewing • 3. absorption • 4. excretion

  5. Breaking down molecules • Starches broken into glucose • Proteins into amino acids • Fats into glycerol and fatty acids • Nucleic acids into nucleotides

  6. Hormones • Gastrin –produce digestive acids in stomach & normalizes cell growth • Secretin- produces digestive juices that neutralizes stomach acid as it enters the small intestine • CCK- produces pancreas enzymes and normal cell growth • Ghrelin- stimulates appetite • Peptide YY- inhibits appetite

  7. video • http://www.youtube.com/watch?v=q3986Yfl5cU

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