Exam 13: The Respiratory System

The respiratory zone is the only site of gas exchange within the lungs.

During ________, oxygen binds to hemoglobin to form oxyhemoglobin.

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

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

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

The amount of air that can be forcibly exhaled after a tidal expiration is around 1200 mL.

What forms the respiratory membrane (air-blood barrier)?

Where does exchange occur?

The bronchioles are the smallest of the conducting passageways in the lungs.

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

Each main (primary) bronchus enters the lung at the apex.

Which nonrespiratory air movement clears the upper respiratory passageways?

Which respiratory disease in which sufferers are often called "pink puffers," is characterized by enlarged alveoli, lung inflammation, and fibrosis of the lungs?

The abbreviation IRDS stands for ________.

What portions of the brain contain respiratory centers and set the breathing rate?

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

What sweeps contaminated mucus from the nasal cavity to the throat?

Chronically inflamed, hypersensitive bronchial passages that respond to many irritants are characteristic of ________.

The presence of air in the intrapleural space is known as ________.

Oxygen is unloaded from the blood stream and diffuses into surrounding cells and tissues during ________.