A&P II

Question 1

What relaxes and contract during inhalation?

Question 2

What relaxes and contract during exhalation?

Question 3

How does a pneumothorax occur?

Question 4

What is Type I cells function?

Answer 4

Aids in Rapid Gas Exchange

Question 5

What is Type II cells function?

Answer 5

Make Type I cells, secrete srufactant

Question 6

What is the function of macrophages?

Answer 6

To dispose/eat bacteria

Question 7

Where is the Respiratory Membrane and occurs at it?

Answer 7

CO2 and O2 are exchanged. In between alveolar and endothelial cells

Question 8

What is hypocapnea

Question 9

What is hypercapnea?

Question 10

What causes acidosis?

Question 11

What causes alkalosis?

Question 12

What is Dalton’s Law?

Question 13

What is Henry’s Law?

Answer 13

Gas has to dissolve in a fluid on alveolar epithelium

Question 14

What influences rate of gas exchange?

Answer 14

Altitude, Excerise

Question 15

How do they influence rate of gas exchange?

Answer 15

Exercise: Capillary PO2 drops
Altitude: Higher you go, slower the rate of exchange

Question 16

What percent of Oxygen is dissolved in Plasma?

Answer 16

1.5%

Question 17

What percent of Oxygen is carried as Oxyhemoglobin

Answer 17

98.5%

Question 18

How does affect pH influence disassociation of RBC

Answer 18

Acidic: Falls off
Alkalinity:Sticks

Question 19

How does affect Temp influence disassociation of RBC

Answer 19

High: Falls off
Low: Sticks

Question 20

After Oxygen is “dropped off”, how much remains on the blood cell?

Answer 20

3/4

Question 21

WHat percent of CO2 is dissolved in plasma?

Answer 21

10%

Question 22

What percentage of CO2 is bound to carbaminohemoglobin

Answer 22

20%

Question 23

What percentage of CO2 is in bicarbonate?

Answer 23

70-90%

Question 24

What is the role of carbonic anhydrase?

Question 25

What occurs during the chloride shift?

Question 26

What is the role of CO2 in the influence of pH?