Cardiovascular System

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Arteries - Function
carry blood AWAY from the heart
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Arteries - Structure
outer layer of connective tissue containing elastic fibres and a middle layer of smooth muscle with more elastic fibres also have smaller width of lumen than veins
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Arteries - Function of Elastic Walls
stretch and recoil to accommodate the surge of blood after each contraction of the heart
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Arteries - Function of Smooth Muscle
in the walls of arterioles (small arteries) can contract and relax causing vasodilation or vasoconstriction to control blood flow
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Capillaries
Allow exchange of substances with tissues, only 1 cell thick to allow quick exchange of materials
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Veins - Function
carry blood TOWARDS the heart
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Veins - Structure
outer layer of connective tissue containing elastic fibres and much thinner muscular wall than arteries however they have wider lumen
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Veins - Valves
prevent back flow of blood
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Coronary Arteries
supplies oxygenated blood to heart muscle
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Carotid Artery
supplies oxygenated blood to the brain
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Renal Artery
supplies oxygenated blood to the kidneys
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Hepatic Artery
supplies oxygenated blood to the liver
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Renal Vein
carries deoxygenated blood from the kidney to the heart
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Other cards in this set

Card 2

Front

Arteries - Structure

Back

outer layer of connective tissue containing elastic fibres and a middle layer of smooth muscle with more elastic fibres also have smaller width of lumen than veins

Card 3

Front

Arteries - Function of Elastic Walls

Back

Preview of the front of card 3

Card 4

Front

Arteries - Function of Smooth Muscle

Back

Preview of the front of card 4

Card 5

Front

Capillaries

Back

Preview of the front of card 5
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