Pulmonary system overview

Question 1

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What does the diaphragm do?

Answer 1

Contraction moves down causes inhalation

relaxation causes exhalation (passive)0

Question 2

What is the normal volume of lungs for adult males?

Answer 2

6 L per min

Question 3

What is the purpose of the epiglottis?

Answer 3

keeps food from going into the lungs

Question 4

What is the purpose of surfactant?

Answer 4

Keeps the alveoli from collapsing

Question 5

What is the blood pressure in the pulmonary system?

Answer 5

25/8

Question 6

What do chemoreceptors in the CNS measure?

Answer 6

H ions
Very sensitive to partial pressure of CO2

Question 7

What do chemoreceptors in the periphery measure?

Answer 7

Monitor oxygen levels through oxygen sensitive K channels

Question 8

Why is carbon monoxide so lethal?

Answer 8

Competes with oxygen for Hgb and has a much greater affinity for it.

Question 9

What increase of FEV1 after albuterol shows asthma?

Answer 9

over 15 % or 200mL

Question 10

What meter is used for at home care for asthma?

Answer 10

PEF

measures peak flow out of lungs