Respiratory System

The movement of air in and out of the lungs

The disease in which tumors form in the lungs as a result of uncontrolled cell growth is

Which human organ is correctly matched with its functional subunit?

Which of the following is a characteristic of a respiratory system?

The function of the cartilage around the trachea is to

A severe allergic reaction in which spasms of the bronchial tubes make breathing difficult

Which of the following occurs during exhalation?

For the most part, breathing is controlled by the

Oxygen molecules absorbed by moist respiratory surfaces in humans diffuse immediately into

As air passes through the nose it is:

A condition in which the walls of the alveoli are damaged and the lungs lose their elasticity with shortness of breath

Numerous studies have shown a relationship between smoking and

When you exhale, the

A process directly involved with gas exchange between air sacs of the lungs and the blood is

A condition in which the alveoli become filled with fluid

The exchange of oxygen and carbon dioxide between blood and body cells

Which of the following occurs during inhalation?

The exchange of oxygen and carbon dioxide between air and blood in the lungs

A condition in which the linings of the bronchial tubes become irritated and swollen

Which sequence correctly indicates the branching pattern of the human respiratory system?

The exchange of gases between the blood and body cells is called

Hemoglobin transports

Cigarette smoke most directly affects the