Bookmark and Share

Front Back
What is the arrangement of the systemic circulation?
In series:
Heart and Lungs --> Aorta --> Large Arteries --> Small Arteries --> Arterioles --> Capillaries --> Venules --> Small Veins --> Large Veins --> Vena Cavae
What vessels in the systemic circulation are involved with "exchange?"
Why is there a need for a large cross sectional area in capillaries?
For nutrient exchange
What is the equation for "flow?"
Flow = Area x Velocity
Q = A x ν

Velocity is inversely proportional to _____?
If area is increased 5x in an artery, then velocity is _____.
decreased 5x
Capillaries have a __1__ surface area and a __2__ velocity.
1) high
2) low
The venous system has what type of vessels?
Capacitance Vessels
Where is the most blood volume held?
What are the two purposes of the venous system?
1) Storage
2) Mobilization
The aorta and arteries are/have:
__1__ Pressure
__2__ in mean pressure
__3__ Resistance
1) High pressure
2) Little change in mean pressure
3) Low resistance
Arterioles are/have"
__1__ in pressure
"__2__ Vessels"
Controllable through __3__
1) Large decrease in pressure
2) "Resistance Vessels"
3) Controllable through smooth muscle
Veins are:
__1__ Pressure
__2__ Resistance
"__3__ Vessels"
1) Low pressure
2) Low resistance
3) "Capacitance Vessels"
What converts intermittent flow to continuous flow?
What is the pressure of the left ventricle and aorta during systole?
Left Ventricle:  120 mmHg
Aorta:  120 mmHg
What is the pressure of the left ventricle and aorta during diastole?
Left Ventricle:  0 mmHg
Aorta:  80 mmHg
What are the three functions of arterioles?
1) Distribute
2) Resistance
3) Control flow to different tissues
x of y cards