1
Intercostal muscles and diaphragm.
2
The ... is a group of bones formed by the dorsal vertebrae, ribs and sternum. The lungs and heart are located inside it.
3
In ... carbon dioxide resulting from the gas exchange is expelled.
4
The body receives air, composed of various gases, including oxygen.
5
The ... are very small cavities in the lungs where gas exchange between the air and the blood takes place.
6
The respiratory ... consist of the nostrils, pharynx, larynx, trachea and bronchi.
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