Microcirculation

Question 1

a decrease in skin arteriole resistance has what effect on Pc and net filtration pressure ?

Answer 1

Increase in Pc and Increase In NFP

Question 2

Increase in precapillary resistance has what effect on Pc and how does fluid move?

Answer 2

Decrease in Pc and NFP and fluid is going to move from tissues –> capilaries

Question 3

Decrease in plasma protein concentration has what effect on capillary oncotic pressure and NFP in capillaries. how does it effect fluid in interstitial space?

Answer 3

Decrease in (pi)c , and NFP will be higher than before resulting in filtration of fluid into interstitial space

Question 4

To stimulate absorption of fluid you would do what to oncontic pressure?

Answer 4

increase

Question 5

what effect does movement of plasma protein play on interstitial oncotic pressure? and how does it effect fluid and the capilaries

Answer 5

Increase in interstitial oncotic pressure and increase filtration of fluid out of the capillaries

Question 6

increase in venous pressure in capillaries cause in increase to What

Answer 6

Increase in Pc leading to increase in filtration of fluid out of the capillary

Question 7

Arteriolar bp increases has what effect on hydrostatic pressure? NFP? and filtration of fluid from capillaries?

Answer 7

causes hydrostatic pressure to increase, and NFP to increase. the filtration increases in the capillaries.

Question 8

negative net filtration sign means…what in terms of fluid direction ?

Answer 8

Fluid moves into the capillaries and out of the interstitial space

Question 9

what can cause an increase in capillary hydrostatic pressure

Answer 9

infusion of a drug that decrease arteriolar resistance, and an increase in activity of nitric oxide synthase activity

Question 10

foot and ankle edema can be caused by…

Answer 10

increase in venule pressure and capillary hydrostatic pressure, and the capillary Kf, and the rate of lymphatic drainage is less than rate of fluid leaving capillaries.