The diaphragm is the primary muscle of respiration.

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. 

Write the clinical term for difficulty breathing while lying down.

The sympathetic nervous system (fight or flight) causes bronchodilation – an increase in the size of the bronchi. What effect would this have on airflow?

This structure located in the heart tissue signals both of the ventricles to contract.

Write the medical term for a heart attack.

Based on your knowledge of the bicarbonate system, if a patient has a condition in which they are unable to exhale carbon dioxide, what would you expect to happen to their pH?

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?

During expiration, carbon dioxide moves from the ______ to the ______.