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What is Overview of the Respiratory System about?
The respiratory system is made up of the nose, mouth, pharynx, trachea, bronchi, bronchioles and lungs. Air enters through the nose and mouth, then passes through the pharynx and trachea into the bronchi and bronchioles which divide into smaller passages and end in tiny air sacs called alveoli in the lungs. The respiratory system works to inhale oxygen and exhale carbon dioxide to supply the body with oxygen and remove waste.
- Author
- EmMa DHieyah
- Language
- EN