Exam 3 Respiratory Physiology

Question 1

Which of the following would be a normal resting respiratory rate in an adult?
10 breaths per minute 
20 breaths per minute 
5 breaths per minute 
15 breaths per minute

Answer 1

15 breaths per minute

Question 2

A person should be able to hold their breath the longest after
a deep expiration
a normal expiration
five deep breathing movements followed by a deep inspiration
a normal inspiration
five deep breathing movements followed by a deep expiration
a deep inspiration

Answer 2

five deep breathing movements followed by a deep inspiration

Question 3

A person should be able to hold their breath for the shortest amount of time after
five deep breathing movements followed by a deep inspiration
a deep inspiration
a normal inspiration
a deep expiration
five deep breathing movements followed by a deep expiration
a normal expiration

Answer 3

a deep expiration

Question 4

The primary stimulus that tells you you need to breath again after holding your breath is

low blood oxygen
high blood carbon dioxide

Answer 4

high blood carbon dioxide

Question 5

You can inspire quicker through your mouth than through your nose because ____________________ is lower through your mouth.

Answer 5

resistance

Question 6

T or F: Two slides wet with pure water are easier to pull apart compared to dry slides.

Answer 6

False, water is sticky

Question 7

FVC

Answer 7

Total amount of air forcefully exhaled after full inhalation

Question 8

FEV 1%

Answer 8

Percentage of FVC that is exhaled in the first second

Question 9

FEF 25–75

Answer 9

Measure of the ease of the flow of air through small bronchi and bronchioles

Question 10

Tidal volume

Answer 10

The volume of air exchanged during normal breathing, about 500mL

Question 11

Inspiratory reserve volume

Answer 11

After a normal inspiration, the amount of air that can then be inspired forcefully, about 3000mL

Question 12

The vital capacity minus the _____ _______ _______ equals the inspiratory capacity.

Answer 12

expiratory reserve volume

Question 13

residual volume

Answer 13

amount of air remaining in the lungs after a forced expiration, about 1300mL

Question 14

Vital capacity

Answer 14

All the air that can be exhaled after a full inhalation.

Question 15

A pneumothorax occurs when air gets into the pleural cavity. Which of the following would you expect to occur when this happens? Select all that apply.

intrapleural pressure would decrease
intrapleural pressure would increase
the lungs would expand slightly
the lungs would deflate / collapse

Answer 15

intrapleural pressure would increase

the lungs would deflate / collapse

Question 16

A spirometer is used to measure rapid exhalation to determine the effects of _____ ______

Answer 16

obstructive diseases

Question 17

Expiratory reserve volume

Answer 17

Amount of air that can be exhaled with maximum effort, about 1200mL

Question 18

How is vital capacity calculated?

Answer 18

expiratory reserve volume + tidal volume + inspiratory reserve volume

Question 19

Label Vital capacity and total lung capacity on a graph

Answer 19

Vital capacity: inspiratory reserve volume, tidal volume, and expiratory reserve volume
Total lung capacity: full capacity of lung including inspiratory and expiratory reserve volumes, plus residual volume
https://www.teachpe.com/wp-content/uploads/2019/07/respiratory-volumes620.jpg

Question 20

Label tidal volume, inspiratory reserve volume, expiratory reserve volume and residual volume on a graph

Answer 20

https://www.teachpe.com/wp-content/uploads/2019/07/respiratory-volumes620.jpg