LAB MANUAL: 10th Edition
LABORATORY EXERCISE 54
BREATHING AND RESPIRATORY
VOLUMES AND CAPACITIES
Critical Thinking Application Answer
Aging results in some natural loss of elasticity of the lungs as well as the muscles (diaphragm and intercostal muscles) used in
breathing. This can be measured by a vital capacity test.
Laboratory Report Answers
PART A
1.
2.
ventilation
atmospheric
8.
9.
visceral pleura
surfactant
3.
760
10.
elastic recoil
4.
5.
atmospheric pressure
phrenic
11.
12.
less
internal intercostal
6.
7.
increases
external intercostal
13.
abdominal wall
5.
6.
d
h
3.
Answers will vary.
PART B
1.
2.
a
g
3.
4.
e
f
PART C
1.
2.
(experimental results)
a. Answers will vary.
b.
Answers will vary.
c. A measurement of residual volume is
needed.
7.
8.
c
b