Follow a human breath
Follow the journey of a human breath. Life processes - Body systems - The respiratory system Learning Points As we inhale, air travels down the trachea to the lungs. Oxygen in the lungs passes through bronchioles and air sacs into the blood. Exhalation releases carbon dioxide from the body. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.
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