Chp 19 Quiz 1

What changes occur as the respiratory tract branches into smaller and smaller tubes?

• They have relatively thicker epithelial lining.

• Their epithelial lining becomes thinner.

• They have relatively more cartilage.

• Their epithelial lining changes to connective tissue.

Instead of using pure oxygen in a clinical situation, carbon dioxide is typically part of the gas mixture used. What is the benefit of having carbon dioxide in this gas mixture?

• It will decrease the rate and depth of breathing.

• It will decrease the rate and increase the depth of breathing.

• It will increase the rate and decrease the depth of breathing.

• It will increase the rate and depth of breathing.

Exposure to secondhand smoke can cause or increase the risk of developing__________.

• pneumonia and tuberculosis

• heart disease and lung disease

• high altitude sickness and sleep apnea

• multiple sclerosis and vasculitis

Another word for breathing is ventilation.

• True

• False

Where are the vocal cords located?

• In the oral cavity

• In the pharynx

• In the larynx

• In the trachea

What process involves gas exchange between the atmosphere and the cells of the body and the resulting chemical reactions that provide the cells with energy to function?

• Respiration

• Metabolism

• Oxidation

• Breathing

In October 2001 at the site of the World Trade Center in New York City, fires were still burning from the terrorist attacks that had brought down the buildings on September 11. What was the greatest danger for the respiratory systems of those people in the area?

• The odor

• Very small particles of airborne debris

• Falling material from damaged buildings

• Large particles of airborne debris

With smoking, what cell type typically undergoes changes, leading to the development of lung cancer?

• Hyaline cartilage cells

• Epithelial cells

• Dense connective tissue cells

• Smooth muscle cells

I'm going to hold my breath until I die and it will be all your fault! Why would the child be unable to carry out their threat?

• The diaphragm will begin to fatigue and it will not be able to hold its contracted position for more than a short period of time.

• Increased carbon dioxide and hydrogen ion concentrations and decreased oxygen concentration stimulate the chemoreceptors, triggering inspiration.

• Decreased and hydrogen ion concentrations and increased oxygen concentration stimulate the chemoreceptors, triggering inspiration.

• The inflation reflex would not allow them to keep their lungs full of air for a prolonged period. The reflex would trigger inspiration.

The pharynx functions as a passageway for__________, whereas the larynx functions as a passageway for__________.

• air and food; air only

• food only; air only

• air and food; food only

• air only; air and food