Blood vessels Flashcards
1
Q
Where do arteries carry blood?
A
Away from the heart
2
Q
Where do veins carry blood?
A
Back towards the heart.
3
Q
How large is the lumen in an artery?
A
Very narrow
4
Q
What to veins contain to prevent the backflow of blood?
A
valves
5
Q
How thick are the walls of a capillary?
A
Very thin
