Respiratory

=**__The Respiratory System__**=

__Physiology__
The respiratory system exchanges oxygen and carbon dioxide with the cardiovascular system.

__Anatomy__
The mouth and nose bring air to the trachae. The trachae splits over and over (like an upside down tree) into bronchioles as the air enters the lungs. At the end of the smallest bronchiole tubes the air reaches the **alveoli**. These grape-like structures are covered in capillaries and are the location where oxygen leaves the alveoli and diffuses into the blood and carbon dioxide leaves the blood and diffuses into the air in the alveoli.

A quick clip that shows the whole process.