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Blood Vessels

Blood Vessels. Tunica interna (intima). Inner layer of arteries and veins Endothelium made of simple squamous epithelial cells. Tunica media. Consists of smooth muscle. Tunica externa (adventitia). Made of connective tissue. A rtery. A rteriole.

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Blood Vessels

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  1. Blood Vessels

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

  3. Tunica media Consists of smooth muscle

  4. Tunica externa (adventitia) Made of connective tissue

  5. Artery

  6. Arteriole Small blood vessel coming off a larger artery

  7. Capillary Smallest of the body’s blood vessels Filled with red blood cells

  8. Venule Small blood vessel feeding into a larger vein

  9. Arteriole and Venule Compared Venule Arteriole

  10. Vein

  11. One-way valve

  12. Oxygenated blood (red vessels)

  13. Deoxygenated blood (blue vessels)

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