Anatomy of Blood Vessels Quiz

What is the innermost layer of both arteries and veins called?

• Tunica media

• Tunica externa

• Endothelium

• Tunica intima

Which layer in arteries contains the internal elastic lamina?

• Endothelium

• Tunica intima

• Tunica media

• Tunica externa

What is the function of the vasa vasorum?

• To supply blood to the walls of large arteries and veins

• To prevent backflow of blood

• To provide elasticity to veins

• To connect the endothelium to the sub endothelial layer

Why do veins have valves?

• To increase blood flow speed

• To provide structural support

• To prevent backflow of low-pressure blood

• To withstand high blood pressure

Which type of veins are most likely to have one-way valves?

• Veins in the neck

• Veins near the heart

• Veins in the arms and legs

• Veins in the abdomen