Kahoots post-quiz 2

Question 1

True or false: normally alveoli empty completely during expiration

Answer 1

False

Question 2

True or false: alveolar ventilation doesn’t always increase when pulmonary ventilation increases

Answer 2

True

Question 3

True or false: O2 and CO2 have equal diffusion constants

Answer 3

False; sometimes they’re at different rates

Question 4

True or false: Hemoglobin has a higher affinity for O2 than any other substance

Answer 4

False (carbon monoxide)

Question 5

True or false: rhythmicity of breathing is brought about by pacemaker activity displayed by the respiratory muscles

Answer 5

False

Question 6

What type of pulmonary cells are responsible for secreting surfectant?

Answer 6

Type II alveolar cells

Question 7

If there’s an obstruction, air flow can still occur because of what?

Answer 7

Pores of Kohn (between alveoli)

Question 8

What nerve innervates the diaphragm?

Answer 8

Phrenic

Question 9

The changes in lung volume that occur with different respiratory efforts can be determined by a what?

Answer 9

Spirometer

Question 10

Pulmonary resistance is _________ that of vascular resistance

Answer 10

1/10

Question 11

What’s the most common cause of pulmonary embolism?

Answer 11

DVT

Question 12

True or false: the pulmonary system contains less smooth muscle than systemic circulation

Answer 12

True

Question 13

What is the major cause of death with COPD patients?

Answer 13

Right sided heart failure

Question 14

Ventilation is higher at the _____________ of the lungs

Answer 14

apex

Question 15

What is the main control of the respiratory center?

Answer 15

Medulla

Question 16

What would increase ventilation, high pH or low pH?

Answer 16

Lower pH

Question 17

What group stimulates the diaphragm to contract, VRG or DRG?

Answer 17

DRG

Question 18

What does the Hering-Breuer Reflex do?

Answer 18

Stops further inspiration (and increases heart rate)