Blood vessels Flashcards
What are layers of blood vessels from inside out?
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What is the Tunica Interna?
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What is the Tunica Externa?
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What is the tunica media compose of? What are differences in veins in arteries?
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Metarteriole
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What the types of capillaries?
Continuous capillaries, Fenestrated capillaries, sinusoids
What are characteristics of sinusoid capillaries? Where do you find them?
Large fenestrations, incomplete basal membrane. Reticular fibers. All of cell membrane contacts liquid for processing. The liver, spleen and the immune system (bone marrow)
What are types of arteries?
elastic arteries, muscular arteries, arterioles
How is veins pressure maintained?
A series of one way valves that keeps blood moving toward the heart
What are the three portal systems in the body?
Hypothalamo-Hypophyseal, Renal portal system, Hepatic system
Renal portal system
Fenestrated to continuous
What are types of capilary exchange?
Transcytosis, simple diffusion, diffusion though intercellular cleft, fenestrations
Trans capillary ultrafiltration
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Where do you find fenestrated capillaries?
In the kidney, small intestine, choroid plexus
What the smallest arteries and veins called respectively?
arterioles and venules
