DIGESTIVE SYSTEM

• Digestive organs

  • Mouth
  • Pharynx
  • Esophagus
  • Stomach
  • Small intestine
  • Large intestine
  • Rectum
• Accessory digestive organs

  • Salivary glands
  • Liver
  • Gall bladder
  • Pancreas
• Alimentary canal

  Organs where food passes through
• Accessory organs

  Assist in the digestion of food
• Digestion in the mouth

  1. Mechanical digestion

  2. Bolus pushed into pharynx

  3. Food delivered to esophagus
• Digestion in the stomach

  Initial protein digestion
• Digestion in the small intestine

  1. Nutrient absorption

  2. Final digestion
• Digestion in the large intestine

  Absorb water from remaining undigested material
• Absorption

  Process of absorbing food in the form of nutrients into the blood stream
• Chewing food

  • Easier digestion
  • Breaks down larger particles into smaller
  • Increases saliva production
• Pancreas

  Produces enzymes that digest carbohydrates, proteins, and fats
• Liver


  • Produces bile that helps digest fats
  • Excess bile stored in gall bladder
  • Bile facilitates breakdown of fat globules