The Digestive System

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The Digestive System

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The Digestive System

• Defn Changes food you eat into nutrients that
  your cells can use.
• Digestion Food is chemically changed so that it
  can be absorbed into the bloodstream.

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Parts of the Digestive System

• Teeth Grinds your food.
• Salivary Glands Produce the saliva in your
  mouth.
• Tongue Helps to push food into your esophagus.

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Parts of the Digestive System

• Esophagus The tube that carries food from the
  mouth to the stomach.
• Epiglottis The flap of skin that covers the
  trachea
• Uvula Covers the nasal passage

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Peristalsis Waves
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Parts of the Digestive System

• Stomach Stores all the food. (warehouse for
  food)
• Sphincter muscles The muscles found at each end
  of the stomach.
• Chyme Liquid lumpy material that is made by the
  stomach.

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How food moves through the Digestive System !!

• Peristalsis Waves A ring of muscle that moves
  food through the digestive system.
• Absorption The process where digested food gets
  into the blood stream

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Absorption in the Small Intestine

• Villi Tiny projections on the inner walls of the
  small intestine where absorption takes place.

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Parts of the Digestive System

• Small Intestine Where digestion first takes
  place.

• Duodenum The tube that runs from the stomach to
  the small intestine.

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Parts of the Digestive System

• Colon
• Large Intestine
• Three Parts
• Ascending Colon
• Traverse Colon
• Descending Colon
• Appendix Attached to the beginning of the
  Ascending Colon

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Other Parts of the Digestive System

• Liver Makes bile and sends it to the gall
  bladder.
• Bile A substance produced by the liver and
  stored in the gall bladder.
• Gall Bladder Receives bile from the liver and
  stores the bile

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Other Parts of the Digestive System

• Pancreas Breaks down sugars and starches.

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Problems of the Digestive System

• Indigestion Stomach too acidic, may be caused by
  eating too fast or too much or by spicy or acidic
  foods.
• Diarrhea Watery feces caused by bacteria,
  virus, food poisoning, nutritional deficiencies.
• Ulcers Sores on the inner walls of the stomach
  or small Intestines.

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Problems of the Digestive System

• Cirrhosis Destruction on liver tissue caused by
  drinking too much alcohol.
• Gallstones Crystals in gallbladder may block
  passage of bile to small intestines.

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Problems of the Digestive System

• Appendicitis Inflammation of the appendix

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Problems of the Digestive System

• Colon Cancer Uncontrolled growth of abnormal
  cells in large intestine.

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Care of the Digestive System

• The best way to take care of the digestive is to
  practice healthful eating habits
• Eat a variety of food from different food groups,
  low in fat high in fiber.
• Do not hurry through your meals. Enjoy your food
• Eat enough food to satisfy your hunger.
• Drink plenty of water.
• Have regular dental checkups