A blockage in the trachea due to a piece of corn would prevent air from reaching the nasal cavity.

An X-ray shows a piece of food trapped in the lung of a patient. Which anatomical structure would have to fail for this to occur?

Air enters the nasal cavity through which of the following passageways?

These microscope structures are the sites of gas exchange in the lungs?

Which of the following best describes the blood after it has traveled to the lungs. 

Damage to this set of nerves would prevent the contraction of the diaphragm, leading to respiratory arrest. 

Check all of the following that are true about patients with Type A blood.

Write the clinical term for difficulty breathing while lying down.

A list of structures of the respiratory system will be provided. Match that structure to whether it is a part of the upper respiratory tract or the lower respiratory tract. 

The purpose of respiration is the provide oxygen for cellular respiration and remove carbon dioxide waste from cellular respiration.