Biology 3.1.2 Features of blood vessels

Question	Answer
What blood vessel does this describe?: Large amounts of elastic tissue	Artery
What blood vessel does this describe?: Small amounts of elastic tissue	Vein
What blood vessel does this describe?: There is no elastic tissue	Capillaries
What does elastic tissue do in blood vessel walls?	Allows walls to stretch and recoil to expand the lumen
What blood vessel does this describe?: There is large amounts of smooth muscle	Arteries
What blood vessel does this describe?: Small amounts of smooth muscle as their is no need for blood to be diverted	Veins
What blood vessel does this describe?: There is no smooth muscle	Capillaries
What blood vessel does this describe?: Very smooth so blood can flow easily to reduce the risk of blood clots	Artieries and veins
What blood vessel does this describe?: Walls are completely made of endothelium and no other layers so speed up the exchange of substances	Capillaries
In what arteries are valves found in?	Aorta and pulmonary arteries
What blood vessel does this describe?: All of these have valves	Veins
What blood vessel does this describe?: No valves	Arteries and capillaries
Why do capillaries have thin walls?	Brings the blood and cells as close as possible to eachother

Resource summary

	Created by Sam Gunnell over 5 years ago