(lecture) Respiratory

Question 1

T/F Lung capacities are the sum of lung volumes.

Answer 1

TRUE

Question 2

T/F Slow deep breathing or rapid shallow breathing strongly affects alveolar ventilation

Answer 2

FALSE

Question 3

T/F Normally, the intrapleural pressure is always more negative than the atmospheric pressure

Answer 3

TRUE

Question 4

Expiration happens

Answer 4

when inspiratory muscles relax

Question 5

Inspiration is primarily an _______ process dependent on activation of ____ muscle.

Answer 5

active, skeletal

Question 6

This is a muscle associated with inspiration

Answer 6

diaphragm

Question 7

Lung resistance is

Answer 7

increased in asthmatics suffering from an attack

Question 8

Surfactant can be

Answer 8

deficient in babies born prematurely > 1 mos.

Question 9

Emphysema decreases

Answer 9

elasticity

Question 10

Surface tension

Answer 10

is created by water

Question 11

T/F lung compliance is less than a toy balloon

Answer 11

FALSe

Question 12

T/F Compliance decreases in emphysema

Answer 12

TRUE

Question 13

T/F Compliance is determined by lung structure and surface tension

Answer 13

TRUE

Question 14

Air flows out of the lung when the intrapulmonary pressure is _____ then the atmospheric pressure

Answer 14

greater than

Question 15

With lung expansion, the intrapulmonary pressure ______ atmospheric pressure.

Answer 15

falls below

Question 16

During expiration the alveolar pressure is ____ than the atmospheric pressure.

Answer 16

greater

Question 17

During inspiration, the intrapulmonary pressure is ____ than the atmospheric pressure.

Answer 17

less

Question 18

At rest, the intrapleural pressure is always _______ than the atmospheric pressure.

Answer 18

less

Question 19

At rest, the intrapulmonary pressure is always ______ the atmospheric pressure.

Answer 19

equal to

Question 20

T/F The intrapulmonary pressure and alveolar pressure mean the same thing.

Answer 20

TRUE

Question 21

Which cell type is important for secreting surfactant?

Answer 21

Type 2 alveolar

Question 22

Surfactant is important for _____.

Answer 22

Decreasing surface tension of water

Question 23

What is not part of the conducting zone?

Answer 23

alveolus