Quiz 6

Question 1

A valuable characteristic of thevascularsystem is that all blood vessels are

Answer 1

Distensible

Question 2

Distensibility allows vascular system to?

Answer 2

• Accomodate pulsatile output

- Average out the pressure pulsations

Question 3

____ are 8x more distensible than ______

Answer 3

-Veins
than
-Arteries

Question 4

pulmonary artery pressures are about ____ of sytemic artery pressures. But are ___ more distensible

Answer 4

• 1/6th

- 6x

Question 5

The relative volume of blood between the arterial and venous sides of the circulation can vary considerably depending upon:

Answer 5

• Total Blood volume
• intravascular pressures
• C.O.
• Vascular resistance and compliance

Question 6

What controls the BP?

Answer 6

Arterioles

Question 7

which vessel in the tunica externa/adventitia layer is thicker than the other?

Answer 7

Veins thicker than Arteries

Question 8

which layer contains nerves and nutrient capillaries?

Answer 8

Exertna/adventitia

also is the fibrous layer

Question 9

which layer has endothelial cells/made of smooth endothelium

Answer 9

Intima

Question 10

what is a venous valve disfunction?

Answer 10

Vericose veins

Question 11

how many cell thickness is a capillary?

Answer 11

one cell thick

Question 12

what are termed resistance vessels?

Answer 12

arterioles

highly innervated by autonomic nerves

Question 13

What are the exchange vessels?

Answer 13

capillaries

Question 14

mean aortic pressure typically?

Answer 14

90

Question 15

mean pressure in capillaries

Answer 15

25-30

Question 16

typical venous return pressure at RA?

Answer 16

0 (zero)

Question 17

arterial compliance =’s

Answer 17

Change in Volume/Change in pressure

Question 18

_____ of smooth muscle in arteries reduces their compliance, thereby decreasing arterial blood volume and increasing arterial blood pressure within the arterial system

Answer 18

Contraction

Question 19

Compliance is also dependant on?

Answer 19

the rate by which the change in volume occurs

Question 20

What law for figuring out MAP

Answer 20

Ohms law

Question 21

male % fluids

Answer 21

60%

Question 22

Female % fluids

Answer 22

55%

Question 23

what percent of ECF is interstitial fluid? and plasma?

Answer 23

80%

20%

Question 24

solution causes cells to swell

Answer 24

Hypotonic ( less than 0.9%NS)

Question 25

causes water to flow out of the cell

Answer 25

Hypertonic (greater than 0.9%NS)

Question 26

isotonic

Answer 26

0.9%

Question 27

fluid to treat dehydration?

Answer 27

D5W