Structure of the blood vessels Brought to you

Structure of the blood vessels

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vein

artery

tunica intima

lumen

tunica media
tunica adventitia

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TS Artery

endothelium lining

tunica intima

muscle layer

tunica media

with elastic
fibres

tunica adventitia

connective tissue

lumen

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Artery with thick muscle layer

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Layers of the wall of an artery

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Comparison of artery and vein

vein
artery

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Artery

Relatively small lumen

Thick muscle layer

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Vein

Relatively large lumen

Thin muscle layer

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Artery and vein compared

Vein

Artery

Semi-lunar pocket valve

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Words to use to complete the sheet describing the structure of arteries and veins
(some words may be used once, some more than once and some not at all)
High

Backflow

Low

Large

Present

Small

Absent

Friction

Thin

Smooth

Thick

Elastic

Squeeze

Fibres

Narrow

Muscles

Anchors the vessels in the tissues
And helps to maintain the blood flow
Also prevents over-expansion to maintain the pressure
By controlling the diameter

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Describe, and account for, the similarities and
differences in the structure of arteries and veins.

To be done in continuous prose
(no tables, no bullet points)

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