Respiratory System

Question 1

Compliance=

Answer 1

Change in volume/change in pressure

Question 2

Compliance is determined by

Answer 2

lung structure and surface tension

Question 3

Pulmonary fibrosis

Answer 3

decreases the compliance of the lung and restricts inflation

Question 4

Total compliance

Answer 4

Both lung and chest wall compliance

Question 5

Lack of type ii alveoli

Answer 5

RDS (infants), ARDS (acute)

Question 6

Surfactant

Answer 6

increases compliance

Question 7

Too little surfactant

Answer 7

causes alveoli to collapse

Question 8

Emphysema

Answer 8

destroys elastin fibers decreasing elastic recoil

Question 9

Oxygen

Answer 9

21% of atmospheric pressure (ballpark 150-160mmHg)

Question 10

Patm=

Answer 10

Pn2+Po2+Pco2+Ph2o

Question 11

Hyperpnea

Answer 11

Inc respiratory rate in response to inc metabolism

Question 12

Tachypnea

Answer 12

Short shallow breathing, dog panting

Question 13

Emphysema and alveoli

Answer 13

Dec alveoli and dec surface area= Dec gas exchange

Question 14

Emphysema and plasma

Answer 14

LOW PO2!

Question 15

Fibrotic lung disease is a —– disease

Answer 15

Restrictive= Harder to breathe IN

Question 16

Fibrotic lung disease=

Answer 16

Thick alveoli, loss of lung compliance, BLACK LUNG

Question 17

Fibrotic lung disease and plasma

Answer 17

LOW PO2

Question 18

Asthma ___ disease

Answer 18

OBSTRUCTIVE

Question 19

Asthma and airways

Answer 19

Increased resistance, decreased ventilation, LOW PO2

Question 20

COPD: _ and _ combo

Answer 20

Emphysema + Chronic Bronchitis

Question 21

COPD: _ive and _ive

Answer 21

destructive, obstructive

Question 22

Cause of COPD

Answer 22

Smoking, exposure to lung irritants

Question 23

Treatment for COPD

Answer 23

Bronchodilators, steroids, flu shots, bullectomy/dec volume of lung!

Question 24

Breathe in

Answer 24

Inspiratory

Question 25

Breathe out

Answer 25

Excitatory

Question 26

Residual volume

Answer 26

Volume of air in lungs that you can't breathe out

Question 27

Vital capacity

Answer 27

FULL inspiration and FULL expiration (all reserve too)

Question 28

Forced vital capacity

Answer 28

lose expiratory reserve, lungs collapsing and gas gets trapped

Question 29

black lung

Answer 29

restrictive

Question 30

diffusion

Answer 30

how gas moves between the air and blood

Question 31

right shift in the OD curve means

Answer 31

Hemoglobin oxygen affinity is DECREASED

Question 32

fetal hemoglobin has greater o affinity sooo

Answer 32

shifts to the left

Question 33

co2 transported in the blood as

Answer 33

HCO3-

Question 34

sleep apnea reduces

Answer 34

alveolar po2

Question 35

Part of brain important for normal automatic breathing

Answer 35

Medulla Oblongata

Question 36

Part of brain important for conscious breathing

Answer 36

Cerebral cortex

Question 37

Chemoreceptors are primarily sensitive to changes in ____

Answer 37

PCO2

Question 38

hypoventilation will ___ PCO2 in the blood

Answer 38

increase

Question 39

Hyperventilation ____ PCO2 in blood

Answer 39

DECREASE

Question 40

Activation of pulmonary (stretch) receptors will ___ inspiration

Answer 40

inhibit (protects overinflation of lungs) infants

Question 41

hemoglobin bound oxygen contributes to blood PO2

Answer 41

false!

Question 42

*The terminal bronchiole would

Answer 42

be part of the conducting zone

Question 43

*Air movement thru alveolar duct into alveoli is by

Answer 43

Diffusion

Question 44

*What P would be smallest at end of inspiration

Answer 44

intrapleural pressure

Question 45

*Total lung cap. =

Answer 45

Vital cap. plus residual vol.

Question 46

*Smoking damages lungs and leads to tissue loss which causes

Answer 46

Dec. alveolar SA

Question 47

* humid environment P02 in alveolar air=

Answer 47

~100 mmHg

Question 48

*Lung fibrosis

Answer 48

decreases compliance in lung