Small arteries (arterioles) lie close to the tissues. One role of an arteriole is to raise or lower the amount of blood flowing to the tissues. Which tissues would be found in the wall of an arteriole to enable this role? 1 collagen 2 elastic 3 muscle
- A1, 2 and 3
- B1 and 3 only
- C2 only
- D3 only