Thoracic Cavity - LA CAVITA' TORACICA

After taking a look at the bones of the thorax, it is now time to examine the thoracic wall as a whole. The thoracic wall is made up of the sternum, ribs plus three layers of intercostal muscles, diaphragm and the intercostal vessels and nerves. Remember that the function of the thorax is respiration (exchanging oxygen for carbon dioxide). The structures of the thoracic wall are designed to do just that.

Transverse section
through the thorax.

When you examine the thorax in cross section, you will notice that it is kidney shaped in form. You can also appreciate the anterior, posterior and lateral boundaries. We will refer to this view of the thorax as we continue.

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