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veins have valves that prevent back flow, and I believe the pressure within circulatory system prevents back flow.
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∙ 12y ago
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Why is it important that the veins contain valves?
to maintain blood flow and pressure
What 3 key factors about veins?
They carry deoxygenated blood their walls are thin their lumen is larger than arteries elasticity is less than artery bluish in color blood flows in vein is with low pressure their valves maintain unidirectional flow of blood
Is data flow bidirectional or unidirectional?
Data flow is always bidirectional my friend, don't confuse.
What is a sentence for unidirectional?
Unidirectional - Unidirectional Unidirectional Unidirectional Unidirectional Unidirectional Unidirectional Unidirectional Unidirectional Unidirectional ! HAHA :)
Is blood flow faster in veins?
Blood flow is faster in arteries than in veins. Blood flow in veins is lower pressure.
There is unidirectional flow of air for greater absorption of oxygen in?
there isunidirectional flow of air for greater absorption of oxygen in?
How is the blood flow controlled in the veins?
The veins have valves in them
What are the flaps of tissue that allow flow of fluid in only one direction?
Flaps of tissue that force unidirectional flow are called valves.
Do capillaries have valves to regulate blood flow?
Capillaries do not have valves to regulate blood flow. Veins are the vessel of the circulatory system that have veins to regulate blood flow.
What does ficiliate the flow of blood?
Veins
How complete ventilation is achieved by birds?
birds have air sac that work as bellow that ensure the unidirectional flow of air
Blood flow from leg to heart?
Veins
