A&P 2 exam 1 (part 3)
Card Set Information
A&P 2 exam 1 (part 3)
Blood and hemodynamics cont
the greater the difference in the pressure, the
faster the fluid moved
someone with high blood pressure has a ___ flow rate
flow of heart to tissue and back?
blood flow (oxygenated)
deoxygenated blood flow
is directly proportional to differences in pressure
why is adipose tissue highly vascularized?
it has a lot of blood vessels
the more blood vessels you have means that
the longer it will take for blood to get from point A to point B
adipose tissue related to fat people how?
bc obese people have high blood pressure bc theyre blood moves slower and has to work hard to get through the extra tissue
flow rate is indirectly proportional to the vessel length
F = 1/L
flow rate is directly proportional to the fourth power of the radius of the vessel
branches off to form multiple arteries
small arteries branched from arteries
where are capillaries found
come together to form veins
have the slowest blood flow
velocity of blood flow goes from?
fast, slow, speeds up
to get more blood flow
which part has the highest total area
the higher the area, the slower the
why is it important that blood flow slows down?
bc if it doesn't, then it doesn't give enough time for oxygen and nutrients to go in and out of the cell
aka layered blood flow
in laminar flow, which layer moves faster?
where is laminar flow (continuous) found
in small blood vessels
when heart contracts and relaxes pushes increase in velocity in both directions
where do pulsatile blood flow occur?
at arteries between the heart and tissue
2 types of laminar flow
is not layered, opposite to laminar flow
occurs after aortic and pulmonary valves or valves in veins
found right next to the pumping chamber of the hear, vein between tissue and heart
when blood flow is pushed through a valve then it is
what are blood vessels made of
smooth muscle and connective tissue
change in volume inside blood vessels as a result of change in blood pressure
are veins or arteries more compliant?
___ is always bigger than ___
artery vs vein, which has thinner wall?
artery vs vein, yields more and requires less pressure to pull apart
artery vs vein, is 24x more compliant