Blood Vessels

Question 1

Artery

*Carries Blood
*Wall Description
*Does it have valves
*Pressure

Answer 1

Carries blood away from heart
Very thick walls
No Valves
High pressure

Question 2

Vein

*Carries Blood
*Wall Description
*Does it have valves
*Pressure

Answer 2

Carries blood back toward the heart
Thinner artery walls
It has valves to prevent back flow
Low pressure

Question 3

Capillary

*Carries Blood
*Wall Description
*Does it have valves
*Pressure

Answer 3

Carries blood from small arteries to small veins
Walls are one cell thick to allow exchange of substance with tissues
No valves
Pressure drops quickly as fluid enters tissues