basic respiratory anatomy worksheet

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

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

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

Where is the trachea located in reference to the esophagus?
It is at the distal end of the esophagus. The trachea is located anterior to the esophagus.

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

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?
In the capillaries

What is the main muscle of respiration?
Diaphragm

What happens when we inhale? Exhale?
When the diaphragm contracts, we inhale and when it relaxes we exhale.

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