asked 188k views
3 votes
25 POINTS!!!!

What are capillaries composed of?

A. Endothelial cells of the tunica externa
B. Endothelial cells of the tunica intima
C. Smooth muscle cells of the tunica externa
D. Smooth muscle cells of the tunica intima

asked
User PYA
by
8.5k points

1 Answer

6 votes
Cant be C or D, so its B

answered
User Neilos
by
7.7k points
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