how does the respiratory system work? - yayscience...the respiratory system? 4. lungs •large...
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How Does the Respiratory System
Work?
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What is the function of the respiratory system?
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What is the function of the respiratory system?
• To get oxygen from the environment into the body
• To remove carbon dioxide and other waste products from your body
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How do the gasses get to and from the cells?
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How do the gasses get to and from the cells?
• Oxygen enters your body when you inhale
• Transported to the cells by red blood cells
• Cells use oxygen and glucose to release energy
• CO₂ is the waste product and high levels can damage cells
• The blood takes CO₂ back to the lungs
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What are the organs of the respiratory system?
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What are the organs of the respiratory system?
1. Nose and Mouth
• Air enters and is filtered by the cilia (tiny hairs)
• Mucus (sticky liquid) traps particles
• Nasal cavity warms air
2. Trachea
• Windpipe, tube like structure where air passes through
3. Epiglottis
• Keeps air from entering stomach and food from entering the lungs
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What are the organs of the respiratory system?
4. Lungs
• Large organs located on either side of your heart
5. Bronchial Tubes
• Moves air into the lungs
• Branches through the lungs into smaller tubes
• Moves air into alveoli
6. Alveoli
• Tiny air sacs with walls only one cell thick
• Air passes and diffuses into the blood
• CO₂ waste passes from blood into alveoli
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What are the organs of the respiratory system?
7. Rib Cage
• Encloses a space called the thoracic cavity
• Ribs are connected by cartilage allowing it to expand
8. Diaphragm
• Large muscle that contracts (pulls downward) when you inhale and pulls in air
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SPEECH AND THE RESPIRATORY SYSTEM
1. Air from lungs is forced between vocal cords
2. Vocal cords vibrate
3. Sound waves generated
4. Sound waves are shaped to form specificsounds.
5. Sound waves travel through air and becomespeech
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OTHER MOVEMENTS OF THE RESPIRATORY SYSTEM
• Coughing
• Sneezing
• Sighing
• Yawning
• Laughing
• Hiccupping
• Etc.
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Respiratory Video from Kids Health