Exam 10: The Respiratory System: Exchange of Gases

A little girl was playing in the snow one day and found that she was wiping her nose quite often. The "runny nose" that she was experiencing due to the cold temperatures resulted from

During inspiration, intercostal muscles function to

The lower pharynx serves as a passageway for both the ________ and ________ systems.

During a cough, what is responsible for constricting the size of the trachea?

Hemoglobin in red blood cells can bind both oxygen and carbon dioxide, but not at the same time since it uses the same binding site.

Which one of the following muscles separates the thoracic cavity from the abdominal cavity?

During the ingestion of food or liquid, which one of the following tips to block the opening to the trachea?

The trachea is completely surrounded by rings of cartilage, resulting in an organ that is inflexible.

All of the following are TRUE regarding the effect of smoking on the respiratory system EXCEPT which one?

Lung diseases, such as emphysema, can be diagnosed by measuring lung volumes and the rates at which these volumes change.

Intrapulmonary pressure must be reduced prior to the process of ________.

The amount of air that enters and leaves the lungs with each breath is the ________.

The exchange of gases in the lungs occurs between the alveoli and the ________.

The rate and depth of normal breathing are determined by

All of the following are involved in the process of breathing EXCEPT which one?

Which one of the following best explains why humans must constantly breathe in oxygen in order to stay alive?

An increase in the amount of carbon dioxide in the body results in a decrease in the pH of the cerebrospinal fluid, which results in an increase in breathing rate.

Oxygen-rich blood flows through the heart