Lecture 10: Arterial, Venous Lymph Systems

Question 1

What is vascular distensibility?

Answer 1

(Increase in volume/increase in pressure) X original volume

Question 2

How much greater is vein distensibility than artery distensibility?

Answer 2

8 times greater

Question 3

How much greater is pulmonary vein distensibility than systemic vein distensibility?

Answer 3

They are equal

Question 4

How much greater is pulmonary artery distensibility than systemic artery distensibility?

Answer 4

6x greater

Question 5

What is vascular compliance?

Answer 5

Increase in volume/Increase in pressure

Total quantity of blood that can be stored in a given portion of the circulation for each mmHg rise in pressure

Ease with which a hollow viscus may be distended (reciprocal of elastance)

Question 6

What is elastance?

Answer 6

Tendency of hollow viscus to recoil toward its original dimensions upon removal of a distending or collapsing force

Question 7

T/F: Low compliance causes ballooning and potential explosion

Answer 7

False, HIGH compliance causes ballooning and potential explosion

Question 8

What happens to the pressure if you increase the blood volume in veins?

Answer 8

The pressure rises very little

Question 9

What happens to pressure in arteries if you increase blood volume?

Answer 9

Pressure rises a lot

Question 10

T/F: Veins have little pressure & high compliance

Answer 10

True