NAME: _______________________________________
ARTERIES
CAPILLARIES
VEINS
Directions: Match the following descriptions to one of the vessels by listing it under the appropriate vessel name. You will only use each descriptor once.
Have sphincter muscle to control blood flow to tissue cells
Operate under high pressure
Have the thickest tunica media
Operate under low pressure
Have valves to prevent backflow of blood
Skeletal muscles assist these vessels with blood flow.
Larger lumen (inside hole of blood vessel)
Vessels that carry blood away from the heart
Maintains blood pressure generated by the heart
Vessels that play a role in exchanges between tissues and blood
Only one cell layer thick (tunica intima)
Vessels that return blood toward the heart