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The Digestive and Excretory Systems
Amazing Body Series

Video Objectives

  1. Students will understand that tissues make up different systems in our bodies that perform different functions for our bodies to live.
  2. Students will learn the parts of our digestive and execretory systems and how they work together to get nutrients from our food to all the cells of our bodies and then eliminate the waste created from cells working.
  3. Students will understand that the digestive system is responsible for taking the nutrients in food and getting them to all the parts of the body for energy, repair and growth.
    1. The major organs of the digestive system are: esophagus, stomach, small intestine, large intestine, rectum, liver, pancreas and gall bladder.
    2. Physical and chemical digestion turn food into nutrients.
      i) Food is broken into small pieces in our mouths by chewing. Specialized teeth tear and grind food in our mouths: canines, incisors, molars.
      ii) Enzymes and mucus secreted by our salivary glands break food into nutrients.
      iii)Nutrients in our foods are proteins, carbohydrates, fats, vitamins, minerals and water.
    3. Peristalsis is the action of muscles contracting in the esophagus and intestines that push food through the digestive system.
    4. The pancreas secretes pancreatic juice that reduces acid, digests carbohydrates into sugar, protein into amino acids and fats into fatty acids and glycerol.
    5. The liver secretes bile that is stored in the gallbladder and is used to digest fats.
    6. Food that can not be digested is passed into the large intestine and rectum and is eliminated as feces.
  4. Students will understand that exercise, drinking water and choosing nutritious foods help the digestive system stay healthy.
    1. 26-30 grams of fiber should be eaten everyday.
  5. Students will understand the the execretory system gets rid of waste produced by cells working. The skin, the respiratory system and the urinary system are the 3 execretory systems in the body.
    1. Every cell in the body takes in nutrients and gives off waste. Cellular waste is carbon dioxide, water, nitrogen and anything it can't use.
    2. Skin gets rid of waste water, salts and waste.
    3. The lungs in the respiratory system get rid of excess water and carbon dioxide.
    4. The urinary system is the main execretory system and filters nitrogen and ammonia out of the blood and includes: 2 kidneys, 2 ureters, 1 urinary bladder and 1 urethra.
      i) Kidneys filter ammonia, nitrogen and other waste products from the blood from millions of structures called nephrons.
      ii) Urine is the primary waste product from the urinary system.
      iii) Nephrons filter 7.5 liters of plasma every hour.
      iv) Urine is being created all the time. It is collected in the urinary bladder and eliminated after pressure receptors tell the brain it is time 'to go'.
      v) Kidneys regulate whether the body should conserve or release water.
      vi) 8 glasses of water a day should be consumed to maintain blood filtration and kidney health.

Classroom Activites

Vocabulary Words

1. Bile
2. Bladder
3. Body systems
4. Bolus
5. Cell
6. Chemical digestion
7. Chyme
8. Colon
9. Defecate
10. Digest
11. Digestive system
12. Duodenum
13. Enzyme
14. Epiglottis
15. Esophagus
16. Excrete
17. Excretory system
18. Feces
19. Fiber
20. Gallbladder
21. Gastric juice
22. Hydrochloric acid
23. Ingest
24. Kidneys
25. Liver
26. Mechanical digestion
27. Microvilli
28. Mucus coat
29. Nephrons
30. Nutrients
31. Organ
32. Pancreas
33. Peristalsis
34. Physical digestion
35. Pressure receptors
36. Rectum
37. Renal artery
38. Saliva
39. Salivary glands
40. Secrete
41. Small intestine
42. Stomach
43. Stretch receptors
44. System
45. Tissue
46. Tongue
47. Ureters
48. Urinary system
49. Urine
50. Villi
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The Digestive and Excretory Systems

What does filling a car with fuel have in common with your body? Using tangible examples, students will understand the importance and purpose of the Digestive and Excretory systems. Follow the path of food and see how each organ of the digestive system contributes to the process. Discover the three systems involved in excreting wastes from your bo...

Chapters (01-11)

 00 - Play All
01 - Introduction
02 - Digestive System Overvi...
03 - The Path of Food
04 - Stomach
05 - Small & Large Intestine
06 - Keeping the System Heal...
07 - Excretory System
08 - Filtering the Blood
09 - Urine and Out
10 - Keeping the Systems Hea...
11 - Review

The Digestive and Excretory Systems
The Digestive and Excretory Systems
Amazing Body Series

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