Respiratory

What are the two entrances for oxygen to enter the respiratory system?
nose and mouth

Where does the air go to from the nose and mouth?
trachea and pharynx

In between the pharynx and the trachea what structure does this lesson leave out?
esophagus

Where is the trachea located in reference to the esophagus?
lateral

What structures moisten the air in the Respiratory System?
mouth and nose

What is the name for the small air sacs at the end of the bronchioles?
alveoli

Where does gas exchange take place in the lungs?
capillaries

What is the main muscle of respiration?
diaphragm

What happens when we inhale? Exhale?
the diaphragm contracts, and pulls the pleural sacs.
and the diaphragm relaxes, and pushes on the pleural sacs.

Sketch a picture of the respiratory system. Include the following structures: nose, mouth, pharynx, larynx, trachea, bronchus, bronchioles, alveoli and lungs.