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Journey Through the Digestive System

Explore how the digestive system breaks down food, from the mouth to the small intestine, with key organs like the stomach, liver, and pancreas playing vital roles. Learn about the process and importance of nutrient absorption and waste elimination. Discover the interconnected functions of the urinary system in filtering waste and producing urine for elimination.

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Journey Through the Digestive System

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  1. DIGESTIVE SYSTEM WEDNESDAY, 12/5/2012

  2. DIGESTIVE SYSTEM • Breaks down the food you eat • Before you eat, when you smell a tasty food, see it or even think about it……what happens? • When you eat, saliva helps break down chemicals in the food

  3. ESOPHAGUS • TONGUE pushes food to back of the throat into the ESOPHAGUS. • 10 in. long and moves food to stomach • Muscles in the walls help food to move by squeezing it through the esophagus • Attached to the end of the esophagus is the STOMACH

  4. STOMACH • Shaped like a “J” • Stores food • Breaks down food into a liquidy mixture • Slowly empties mixture into SMALL INTESTINE (sort of like a mixer mashing food together with the help of gastric juices which helps to kill bacteria)

  5. SMALL INTESTINE • 1.5 – 2 in. around; at least 22 feet long • Packed inside of your stomach • Breaks down the food mixture so your body can absorb all vitamins, minerals, proteins, carbohydrates and fats • Food spends as long as 4 hours in small intestine • ….with the help of the pancreas, liver and gallbladder

  6. THE BUDDIES • PANCREAS – makes juices that help the body digest fats and proteins • Juice from the LIVER called bile helps absorb fats into the bloodstream • GALLBLADDER serves as the warehouse for the bile

  7. LIVER • Nutrient-rich blood goes here for processing • Filters out harmful substances or wastes • Helps figure out how many nutrients will go to the rest of the body

  8. LARGE INTESTINE • ¾ in. around, 5 feet long • Packed inside your body • Has a tiny tube at the end called the appendix • After most nutrients are removed from the food mixture…..there is leftover ‘waste’ • This ‘waste’ passes through the part of the large intestine called the COLON.

  9. LARGE INTESTINE • This is where the body gets its last chance to absorb the water and minerals into the blood • As the water leaves, waste gets harder & harder as it moves. It then becomes a solid called…….. • The large intestine pushes it into its very last stop before being extracted.  • Drink water, healthy diet, fiber (fruits, veggies, whole grains)

  10. URINARY SYSTEM

  11. *KIDNEYS – filters waste from the blood and produces urine (IF THEY DO NOT, TOXINS BUILD UP)  *URETERS – two thin tubes that take urine from the kidney to the bladder *BLADDER – a sac that holds urine until time to use the restroom *URETHRA – tube that carries urine from the bladder out of the body

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