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History
Arteriole
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An arteriole is a small-diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to capillaries.
Types of blood vessels, including an arteriole and artery, as well as capillaries.
Types of blood vessels, including an arteriole and artery, as well as capillaries.
Rabbit arteriole at 100X
Rabbit arteriole at 100X
Decreased diameter of Arteriole.
Decreased diameter of Arteriole.
Blood vessel
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Blood vessels are the components of the circulatory system that transport blood throughout the human body. These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. They also take waste and carbon dioxide away from the tissues. Blood vessels are needed to sustain life, because all of the body's tissues rely on their functionality.
Transmission electron micrograph of a blood vessel displaying an erythrocyte (red blood cell, E) within its lumen, endothelial cells forming its tunic
Transmission electron micrograph of a blood vessel displaying an erythrocyte (red blood cell, E) within its lumen, endothelial cells forming its tunica intima (inner layer), and pericytes forming its tunica adventitia (outer layer).
Constricted blood vessel.
Constricted blood vessel.