Respiratory System Nurse Tech 1

Sound is produced by air being expelled from the lungs and passed over the larynx.

• True

• False

The larynx gives resonance to the voice.

• True

• False

There are about 500 million alveoli in the adult lung.

• True

• False

Chemical control of respiration is dependent on the level of carbon dioxide in the blood.

• True

• False

Most respiratory infections are caused by bacteria.

• True

• False

If the level of carbon dioxide in the blood is too low, it can result in dizziness and fainting.

• True

• False

Respiratory infections account for between 40 and 50 percent of all infections

• True

• False

The most difficult part of breathing for individuals with emphysema is inhaling sufficient amounts of air.

• True

• False

The exchange of oxygen and carbon dioxide between the lungs, body, and outside environment is called _____.

• external respiration

• internal respiration

• cellular respiration

• oxidation

A deep, prolonged breath that fills the lungs, believed to be caused by the need to increase the level of oxygen in the blood, is called _____.

• coughing

• yawning

• sneezing

• hiccups