Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous...

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BLOOD VESSELS

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Transcript of Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous...

Page 1: Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous epithelial cells.

BLOOD VESSELS

Page 2: Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous epithelial cells.

Tunica interna (intima)

Inner layer of arteries and veins

Endothelium made of simple squamous epithelial cells

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Tunica media

Consists of smooth muscle

Page 4: Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous epithelial cells.

Tunica externa (adventitia)

Made of connective tissue

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Artery

Page 6: Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous epithelial cells.

Arteriole

Small blood vessel coming off a larger artery

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Capillary

Filled with red blood cells

Smallest of the body’s blood vessels

Page 8: Tunica interna (intima) Inner layer of arteries and veins Endothelium made of simple squamous epithelial cells.

VenuleSmall blood vessel feeding into a larger vein

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Arteriole and Venule Compared

Arteriole

Venule

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Vein

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One-way valve

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Oxygenated blood (red vessels)

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Deoxygenated blood (blue vessels)


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