Arteries Veins And Capillaries Flashcards
1
Q
The arteries do what
A
They carry blood away from the heart
2
Q
Arteries have
A
Thick out walls
Thick layers of muscles and elastic fibers
3
Q
The blood in the arteries is
A
Under high pressure generated by the heart
4
Q
Veins do what
A
They return blood back to the heart
5
Q
The blood in the veins are
A
Under lower pressure than the blood in the arteries
6
Q
Therefore veins have
A
Thin walls
Thin layer of muscle and elastic fibre
Vein valves (to keep the blood flowing in the correct direction)
7
Q
Capillaries allow
A
Food and oxygen to difuse to cells whilst waste is difused from cells
8
Q
Therefore capillaries have
A
Very thin walls (only 1 cell thick)
