Uneven, scroll-like nasal bones.

Voice box.

Serous membrane that surrounds the lungs.

Adam’s apple.

Reduces surface tension in the alveoli.

Air-filled cavities that surround the nose.

The area of the thoracic cavity between the lungs.

Match the following terms with the letters shown on the illustration. Secondary bronchi.

Match the following terms with the letters shown on the illustration. Larynx.

Match the following terms with the letters shown on the illustration. Bronchiole.

Match the following terms with the letters shown on the illustration. Trachea.

Match the following term with the letter shown on the illustration:

Letter C

Match the following term with the letter shown on the illustration:

Letter A

More people in the United States die from lung cancer than any other form of cancer.

The common cold is also called nasopharyngitis.

The virus Mycobacterium tuberculosis causes emphysema.

Central chemoreceptors are sensitive to carbon dioxide.

Gases diffuse from areas of high concentration to areas of low concentration.

The right lung has two lobes.

External respiration takes place in the lungs.

A decrease in cerebrospinal fluid pH stimulates the brain’s inspiratory center.

In the alveoli, carbon dioxide diffuses out of the blood and into the alveolar sac.

As the lungs expand, the intrapulmonary pressure falls below the atmospheric pressure.

Which of the following may cause pneumonia?

What is the shape of the cartilaginous rings in the trachea?

Which of the following is NOT a type of receptor involved in regulating respiration?

During an asthma attack, the airways are temporarily constricted by ____.

Swollen neck glands are a symptom of which URI?

Which of the following keeps food out of the trachea?

The main site of gas exchange in the lungs is the ____.

In the ____, oxygen diffuses into the blood.

Gas exchange between the tissues and capillaries is ____.

During inspiration, the diaphragm ____.

The medulla oblongata and ____ work together to control breathing.