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28 Cards in this Set
- Front
- Back
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how many classes of blood vessels
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5
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how many capillary networks does blood flow before returning to the heart
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2
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Blood flows through two consecutive capillary network before returning to heart.
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portal system
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point where two blood vessels merge
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ANASTOMOSIS
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how many distinct layers does the wall of the arteries and veins contain
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3
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names of the layers of the arteries and veins
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tunica externa, tunica media, tunica intima
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outermost layer of the arteries and veins
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tunica externa
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what type of tissue is the tunica externa
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loose connective tissue
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middle layer of the arteries and veins
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tunica media
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thickest layer of the arteries and veins
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tunica media
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type of muscle that the tunica media have
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smooth muscle
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which layer has collagen
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tunica media
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what type of fibers does the tunica media have
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elastic
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another name for tunica intima
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interna
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Smooth inner layer that repels blood cells & platelets
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tunica intima
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layer that is simple squamous endothelium
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tunica intima
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layer that overrides a basement membrane
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tunican intima
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what kind of tissue is the tunica intima
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fibrous
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Have thicker walls
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arteries
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Have more smooth muscle and elastic fibers
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arteries
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Are more resilient
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arteries
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DISTRIBUTE OXYGEN AND NUTRIENT RICH-BLOOD TO MICROSCOPIC NETWORKOF VESSELS ( capillaries )
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arteries
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UNDERGO CHANGES IN DIAMETER
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arteries
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decreases the size of the lumen
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VASOCONSTRICTION
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increases the size of the lumen
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VASODILATION
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CONDUCTING ( ) ARTERIES
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ELASTIC
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DISTRIBUTING ( ) ARTERIES
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MUSCULAR
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RESISTANCE ( ) ARTERIES ( ARTERIOLES )
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SMALL
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