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vessel anatomy

TermDefinition
respiratory pump inhalation drops pressure & blood moves faster
skeletal muscle pump return blood to heart through skeletal muscle contractions
venous return blood back to heart
flow of blood through vessels heart->arteries->capillaries->veins->heart
anastomosis where two blood vessels & other capillaries merge
portal system flows through two consecutive capillary beds
large veins largest & closest to heart. empty into heart
medium vein usually names, drains organs ®ions has venous valves
venules smallest, closest to capillary beds- drains capillaries
sinusoid capillary intercellular gaps- blood filled places most leaky
fenestrated capillary filtration pores, where rapid exchange happens mid-leaky
continuous capillary most common- intercellular cleft least leaky
capillary exchange w tissue
arterioles smallest- typically not named most change in diameter
muscular artery named for regions or organs
elastic artery closest to heart & large
tunica interna deepest, lives in artery, vein, capillary mostly endothelium & is permeable
tunica media middle layer, lives in artery and veins only smooth tissue & elastic muscle thickest in artery allows for change in diameter
tunica externa superficial layer, lives in artery and veins only loose C.T. anchors vasa vasorum
Created by: huntybaby
 

 



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