Exam 13: The Respiratory System

The opening between the vocal cords is known as the epiglottis.

Match the following with the four events of respiration: -Gas exchange occurring between the pulmonary blood and alveoli

Which of the following is NOT one of the four main events of respiration?

Hyperpnea results from exercise when breathing becomes deeper and more vigorous.

Sudden inspirations resulting from spasms of the diaphragm are hiccups.

Expiration (exhalation) occurs when ________.

The "guardian of the airways" that prevents food from entering the superior opening of the larynx is the thyroid cartilage.

Match the following structure with its description: -Part of the respiratory zone, these air sacs perform gas exchange

Surfactant prevents lung collapse since it lowers surface tension of the film of water lining each alveolar air sac.

Using Figure 13.1, identify the following: -The diaphragm muscle is indicated by ________.

Hyperventilation is the body's response to ________.

The ________ tonsil, or adenoid, is located high in the nasopharynx region.

Expiration occurs when the thoracic and intrapulmonary volumes decrease and the intrapulmonary pressure increases.

The lipid molecule critical to lung function that coats the gas-exposed alveolar surfaces is called ________.

Even after a forceful expiration, air still remains in the lungs for gas exchange to continue. This volume is about ________.

Lung collapse, or ________, can occur if the intrapleural pressure equals atmospheric pressure when air enters the pleural space.

From superior to inferior, the three regions of the pharynx are the ________.

Match the following structure with its description: -Passageway for both food and air; known as the "throat"

The division of the trachea produces two tubes called the right and left main (primary) ________.

Gas exchange occurs in the ________.