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The Respiratory System

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    The respiratory system
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  • What is the pull of air into and back out of the body called?
    breathing
  •  15
  • What is the waste gas that is removed from your body during breathing?
    carbon dioxide
  •  10
  • Air that you breath moves over your vocal cords and creates __________________.
    sound
  •  15
  • How does air enter the respiratory system?
    through the nose and mouth
  •  15
  • What is the hollow organ that connects the throat to the trachea and holds our vocal cords?
    larynx
  •  25
  • What is another name for the body part often called the "voice box?"
    larynx
  •  15
  • The main tube that carries air to your lungs is called the _____________________.
    trachea
  •  15
  • What is another name for the body part often called the "windpipe?"
    trachea
  •  5
  • What are the tiny hairs in the respiratory tract and nose that catch dust and dirt before it reaches the lungs?
    cilia
  •  25
  • The tiny tubes inside the lungs that lead air into the air sacs are called the _________________________.
    bronchioles
  •  25
  • At the end of the bronchioles are tiny air sacs that are called ___________________.
    alveoli
  •  25
  • Alveoli are covered by tiny blood vessels called _________________________.
    capillaries
  •  20
  • How does oxygen get from the air you breathe into the blood?
    It passes through the alveoli into the capillaries.
  •  15
  • How often does breathing happen?
    every 3 to 5 seconds
  •  10
  • ______________________ is the breathing in of oxygen.
    inhaling
  •  10
  • What is the large muscle beneath the lungs that helps you inhale and exhale?
    diaphragm
  •  15
  • ________________________ breathing allows you to hold your breath or control your breath in or out.
    voluntary
  •  15
  • __________________________ breathing is controlled by the body when you are awake or asleep.
    involuntary
  •  15
  • The breathing out of carbon dioxide is called ___________________________.
    exhaling
  •  10
  • Where does carbon dioxide in the body come from?
    It is a waste gas from cells.
  •  25
  • What protects your lungs inside your chest?
    your ribs
  •  5
  • The ________________________ do most of the work when it comes to breathing.
    lungs
  •  10