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Understanding Respiration and Digestion in Human Body

Learn about respiratory system functions, air pathway, speech production, digestive system breakdown, cellular respiration, and key organs involved in respiration and digestion.

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Understanding Respiration and Digestion in Human Body

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  1. Science18.1 Respiration18.2 Digestion

  2. When you breathe, your respiratory system is bringing your body • Oxygen and removing carbon dioxide

  3. What order does air come into your body? • 1. mouth • 2. throat • 3. bronchial tubes • 4. lungs

  4. What body system makes speech (your voice) • Respiratory

  5. Which muscle contracts (squeezes)to make your chest expand (get bigger)? • diaphragm

  6. When the digestive system breaks down food, your body gets • Energy and materials

  7. When you chew your food, that is what kind of digestion? • Mechanical (you move your mouth…mechanical means to move)

  8. When your saliva (spit) softens your food that is what type of action? • Chemical (your saliva has chemicals in it that breaks down your food)

  9. Peristalsis is what type of digestion? • mechanical

  10. If a cell does not get enough oxygen it will • die

  11. To release energy, your body uses oxygen and what during cellular respiration? • glucose

  12. What is another word for the voice box? • larynx

  13. Movement of food through the esophagus due to muscular action is called • peristalsis

  14. Chemical and mechanical digestion occur in what two places? • Mouth • Stomach

  15. What is produced in the liver? • bile

  16. What type of cell transports (carries) oxygen through the body? • Red blood cells

  17. What do we do to get air into our bodies? • breathe

  18. What is the esophagus? • A tube that carries food from the mouth to the stomach

  19. Where does digestion begin? • mouth

  20. What absorbs water during digestion? • Large intestine

  21. What tube is located between the larynx and the bronchi • trachea

  22. What are the tiny air sacs where gas is exchanged (swapped) called? • alveoli

  23. What is the substance (stuff) that traps dirt and pollen called? • mucus

  24. Which muscle pushes the air out of the lungs? • diaphragm

  25. You can get asthma even if you don’t smoke.

  26. 20% of the air we breathe in is oxygen

  27. What do scuba divers carry in their air tanks? • oxygen

  28. Is water a nutrient (something good for your body)? • Yes

  29. Salivary Glands are part of which system? • digestive

  30. Don’t forget to study the drawing of the • 1. Respiratory system • 2. Digestive system

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