Chapter 17 - The Respiratory System: Gas Exchange & Regulation of Breathing Flashcards
1
Q
Diffusion of gases is based on _____.
A
concentration gradients
2
Q
The pressure of a gas depends on _____.
A
temperature, number of gas molecules, and volume
3
Q
Normal pressure of lungs at rest is _____.
A
0 mmHg
4
Q
At sea level, O2 pressure is _____.
A
160 mmHg
5
Q
Which is more soluble in water (and blood): CO2 or O2?
A
CO2
6
Q
a condition in which ventilation is insufficient to meet the metabolic demands of the body
A
hypoventilation
7
Q
a condition in which ventilation exceeds the metabolic demands of the body
A
hyperventilation
8
Q
increased ventilation due to increased demand
A
hyperpnea
