Peripheral Circulation/Distributive Vessels

Question 1

What are three characteristics of vascular smooth muscle?

Answer 1

Graded control of contraction
Myogenic contraction response
Latch state of contraction

Question 2

What creates the largest amount of resistance to flow?

Answer 2

Arterioles

Question 3

What causes the majority of the circulatory pressure lost?

Answer 3

Arteriolar resistance

Question 4

What is elasticity?

Answer 4

Tendency to recoil when stretched

Question 5

What is distensibility?

Answer 5

Relative ease of stretching vascular tissue

Question 6

What is capacitance?

Answer 6

Change in volume of a vessel in response to a change in pressure (V/P)

Question 7

What is resistance?

Answer 7

R= P/Q

Question 8

What is the Windkessel Effect?

Answer 8

The walls of the aorta distend reducing ventricular work and reduces pulsatile flow; allows constant flow

Question 9

What are resistance vessels?

Answer 9

Arteries

Question 10

What are capacitance vessels?

Answer 10

Veins

Question 11

What is compliance?

Answer 11

Change in volume in response to a change in transmural pressure