biology

biology

Storyboard Text

  • Hi, today i will guide you through the respiratory system step by step. Everyone in the world is breathing, its how we stay alive, we inhale oxygen and exhale carbon dioxide.
  • After you inhale, the air travels through the trachea (red) which connects to two tubes called the bronchi.
  • The bronchi then passes the air to both lungs.(yellow). The right lung has 3 lobes, the left one has 2.
  •  Inside of each lung, there are little air sacks called alveoli. Inside them is where the exchange between carbon dioxide and oxygen happens.
  • Under the lungs we have the diaphragm ( blue). The diaphragm separates the chest and the abdomen. Not just that!  It contracts when you breathe in, and expands when you breathe out.
  • Well, now you know. Breathing is something we do everyday and none of us see how important it is and how it goes through a process that we dont even notice.
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