Final Exam Words to know

Question 1

Vascular resistance

Answer 1

-Vascular resistance defines how much pressure we have
-Pressure drives flow
-The greater the resistance, the less flow.
-The less the resistance, the greater the flow.

Question 2

What is the inverse of vascular resistance?

Answer 2

Vascular Conductance
-The ease at which blood can flow through a vessel

Question 3

What is Poiseulles law?

Answer 3

Formula that uses viscosity and density to determine vascular resistance.

Question 4

What is in control of how much fluid we have in our body?

Answer 4

The kidney

Question 5

What is the “choke point”?

Answer 5

Small arteries and arterioles

Question 6

What do you expect to see on the proximal side of high resistance vessels?

Answer 6

High pressure

Question 7

What do you expect to we on the distal side of high resistance vessels?

Answer 7

Low pressure

Question 8

What is Laminar flow?

Answer 8

Refers to the smooth flow of fluid with minimal mixing between them.
We want this flow every where
It is efficient and doesn’t cause problems

Question 9

What is turbulent flow?

Answer 9

Disorderly flow/ pathological
We don’t want this.
Inefficient

Question 10

How much of our CO does our kidney get?

Answer 10

20% of our CO
1L/min
Much more perfusion than they actually need

Question 11

Delta pressure

Answer 11

Delta pressure is the difference between one end of the tube and the other end of the tube
-large diff= a lot of flow
-small diff= less flow