1. Oxygen is transported mainly by this method:
Chemically bound to hemoglobin
Dissolved in the blood plasma
As bicarbonate ions

2. When air is inhaled and passes through the internal nares, it enters the ____ next.
laryngopharynx
oropharynx
nasopharynx

3. The division of the brain stem that controls the basic rhythm of breathing is the...
dorsal respiratory group of the medullla
ventral respiratory group of the medulla
pneumotaxic area of the pons

4. A term that describes a temporary absence of breathing is...
dyspnea
cyanosis
apnea

5. The pressure of a gas varies inversely with the ___.
volume of the container
amount of oxygen in the sample
partial pressure of nitrogen

Score =
Correct answers:

Last Updated 05/26/06