Lungs

Key Stage 3

Meaning

The lungs are organs in the respiratory system used to transfer oxygen from the air to the blood and transfer Carbon Dioxide from the blood to the air.

A computer generated image of the lungs.

Adaptations of the Lungs

The lungs contain thousands of small air sacks with alveoli inside to give a large surface area for gas exchange.

About Lungs

The lungs are found in the thorax.

The lungs are protected by the rib cage.

The lungs are 100 times easier to inflate than a balloon.

Breathing in is called inhaling and breathing out is called exhaling.

The lungs contain many alveoli that exchange Oxygen and Carbon Dioxide with the blood.