Section 2 Lecture 2 Flashcards Preview

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Flashcards in Section 2 Lecture 2 Deck (22):
1

how is pressure related to both volume and stiffness?

proportionally P = V X Stiffness

2

How is pressure related to volume?

proportional relationship P = V/Compliance

3

How is pressure related to compliance?

inverse relationship

4

stiffness =

1/compliance = delta P (trans)/ delta V(s)

5

Q =

delta P/ R

6

mean circulatory pressure:

10 mmHG

7

How much more compliant is the venous system than the arterial system?

19X more compliant

8

T or F? most of the stressed volume resides on the arterial side of the system.

F. Venous side

9

T or F? For a pressure increase in the arteriole system there must be a compensatory decrease of the same pressure on the venous side.

F. Pressure increases much more per a given volume because there is much less compliance in the arterial system than the venous system

10

Relationship (equation) bw pressure, volume and compliance:

P = V/ Compliance

11

If the pressure increases on the arterial side 90 mm Hg (from 10 - 100), what will the corresponding decrease in venous pressure be?

- mm Hg

12

Change in arterial pressure with each pump of the heart

about 5 mm Hg

13

Change in venous pressure with each pump of the heart

about 2.5 mm Hg

14

Standing pressure of the right atrium:

2 mmHG

15

Standing pressure of the pulmonary artery:

20 mmHG

16

Standing pressure of the left atrium:

5 mm Hg

17

Standing pressure of the aorta:

95 mm Hg

18

Pressure gradient bw the pulmonary artery and the left atrium:

15 mm Hg

19

Total change in pressure of the system:

93 mm Hg

20

Where is there a higher pressure, the right atrium or the right ventricle?

right atrium

21

How much pressure does the R side of the heart exert to pump blood through the lungs?

about 30 mm Hg

22

How much pressure does the L side of the heart exert to pump blood through systemic circulation?

about 110 mm Hg