VASCULAR ARDMS TEST QUESTIONS AND
ANSWERS 2025
what are the 5 vessels of the micro circulation? -
.....ANSWER ..... ✔✔arteries
arterioles
capillaries
venules
veins
what are arteries? - .....ANSWER ..... ✔✔transport
gases, nutrients, and other essential substances to the
capillaries
what happens to the size of arteries as they progress
from the aorta to the arterioles? - .....ANSWER .....
✔✔they progressively decrease
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what are arterioles? - .....ANSWER ..... ✔✔considered
resistance vessels
assist with regulating blood flow through contraction and
relaxation
what are capillaries? - .....ANSWER ..... ✔✔nutrients
and waste products are exchanged between the tissue
and blood
what are venules? - .....ANSWER ..... ✔✔collect blood
from the capillary beds
also assist with regulating blood flow through contraction
and relaxation
what are veins? - .....ANSWER ..... ✔✔collect blood
from the venules and return it to the heart
what happens to the size of veins as they progress from
the venules to the heart? - .....ANSWER ..... ✔✔they
get progressively larger
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what three layers make up the anatomy of a vessel
wall? - .....ANSWER ..... ✔✔tunica intima
tunica media
tunica adventitia/ externa
what is the tunica intima? - .....ANSWER .....
✔✔innermost layer
consisting of smooth endothelial space is the site of
proliferative activity: atherosclerosis
Where does atherosclerosis occur? - .....ANSWER .....
✔✔tunica intima
what is the tunica media? - .....ANSWER .....
✔✔middle layer
thickest layer
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composed of smooth muscle cells intermingled with
elastic fibers
what is the tunica adventitia? what is it also called? -
.....ANSWER ..... ✔✔tunica externa
outer layer
thinner than tunica media
contains fibrous connective tissue
some muscle fibers
which vessel wall layer contains nerve fibers and
lymphatics? what is their purpose? - .....ANSWER .....
✔✔tunica externa
to remove metabolic waste and nourish the vessel
which vessel wall layer contains the vasa vasorum? -
.....ANSWER ..... ✔✔tunica adventitia