The Respiratory System

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The Respiratory System

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Presentation transcript:

The Respiratory System Video (3min 22sec): https://www.youtube.com/watch?v=8NUxvJS-_0k

The Respiratory System This organ system that is made up of the trachea, bronchioles, lungs, alveoli and other structures It connects the lungs to the outside Its function is taking in oxygen and removing carbon dioxide

Breathing Hiccups happen when the diaphragm quickly contracts, letting air in quickly, snaping shut the epiglottis

The Respiratory System How do we keep food from going down the trachea? Epiglottis is a flap of tissue that covers the trachea when we swallow food.

Gas Exchange Alveoli have very thin walls, and are surrounded by capillaries Oxygen diffuses through the walls of the alveoli, through the capillary walls, and into the blood stream Carbon dioxide in the blood diffuses from the capillaries into the alveoli, which is then exhaled by the lungs

Gas Exchange in the Alveoli

Your turn Outline the path oxygen takes going from the air, to your lungs (alveoli) Outline the path carbon dioxide takes going from your lungs (alveoli) to the air. How does breathing result in gas exchange?