17. Are the arteries or the
veins constituted of more
muscle tissue? How different
are the walls of these two
types of blood vessels?

Gap-fill exercise

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The arterial system thicker muscle
walls within arteries the
circulates under higher . The
veins are flaccid than arteries.

the lumen to external layer
both of vessels are of
endothelium, muscle and
connective tissue. both the
endothelium a single layer cells.In
arteries the tissue portion is
than in veins in these
vessels external connective tissue
thicker than in .

Arteries are the blood vessels.
The pulse can be in a
medical , for example, by
palpation of the artery in the
and lateral face the wrist
near base of the .