THE RESPIRATORY SYSTEM

The respiratory system controls how you breathe

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• Nasal Cavity- air goes through it
• Cilia- pushes mucus to the front on the nose
• Mucus- a sticky substance that lines the nose

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• Oral cavity- mouth
• Pharynx- pushes food to the esophagus

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• Larynx- opens when air passes through
• Vocal cords- two thin folds of tissue in the larynx

Air travels through the trachea and into the lungs

The diaphragm helps the lungs expand

WHAT DOES THE RESPIRATORY SYSTEM CONTROL?

• Your breathing

Air travels to the nose or mouth first in the respiratory system. The nose moistens and warms the oxygen that passes through it.

AFTER THE NOSE

• The air travels to the larynx were it opens so the air can pass through
• Then the air goes through the trachea
• Then the air goes into the lungs

THE DIAPHRAGM

• Helps your lungs expand
• Pushes down organs

THE LARYNX

• Opens and closes to help you sing, hum and talk