elastic artery:
function
recoil
muscular artery:
function
distribution (blood pressure)
arteriole:
function
resistance
blood pressure
venule:
function
diapedesis
medium/muscular vein:
function
capacitance
large/elastic vein:
function
blood return
elastic artery:
lumen (round/collapsed)
round
muscular artery:
lumen (round/collapsed)
round
arteriole:
lumen (round/collapsed)
round
venule:
lumen (round/collapsed)
collapsed
medium/muscular vein:
lumen (round/collapsed)
collapsed
large/elastic vein:
lumen (round/collapsed)
collapsed
elastic artery:
wall (thick/thin)
thick
muscular artery:
wall (thick/thin)
thick
arteriole:
wall (thick/thin)
thick
venule:
wall (thick/thin)
thin
medium/muscular vein:
wall (thick/thin)
thin (compared to artery)
large/elastic vein:
wall (thick/thin)
thin (compared to artery)
elastic artery:
intima
endothelium
2-4 subendoth CT
a few elastic fibers
muscular artery:
intima
endothelium
0-1 subendoth CT
internal elastic membrane
arteriole:
intima
endothelium
venule:
intima
endothelium
medium/muscular vein:
intima
endothelium
with valves
large/elastic vein:
intima
endothelium
1-3 subendoth CT
with valves
elastic artery:
media/adventitia
M>A
muscular artery:
media/adventitia
M>A
arteriole:
media/adventitia
M>(A)
minimal adventitia
venule:
media/adventitia
M>(A)
minimal adventitia
medium/muscular vein:
media/adventitia
M<A
large/elastic vein:
media/adventitia
M<A
elastic artery:
media
smooth muscle
~40 layers with collagen I & elastic fibers
muscular artery:
media
smooth muscle
~5-35 layers with collagen I
external elastic lamellae
arteriole:
media
smooth muscle
1-4 complete layers
venule:
media
smooth muscle
1 incomplete layer
medium/muscular vein:
media
smooth muscle
~2-15 layers with collagen I
large/elastic vein:
media
smooth muscle
>20 layers with collagen I & elastic fibers
elastic artery:
adventitia
with vaso vasorum & nerves
muscular artery:
adventitia
N/A
arteriole:
adventitia
minimal
~1 cell
venule:
adventitia
minimal
~0-1 cell
medium/muscular vein:
adventitia
N/A
large/elastic vein:
adventitia
with vaso vasorum & nerves