Blood Vessels
Blood Vesselsi
Deliverysystemof dynamic structuresthatbeginsorends at the heart
Arteriesi carrybloodaway from the heart oxygenatedexceptfor pulmonarycirculation or
umbilicalvessels of a fetus
Capillariesi contact tissue cells s directly serve cellular needs
Veinsi carrybloodtoward the heart
Vascular components overview Structures ofBlood Vessel Walls
Arteries Arterioles capillaries venules veins
Arteries r Viens
Tunicaintimatunicamedia tunicaexterna
Capillaries
Endothelium w
sparse basal lamina
Lumen
central bloodcontainingspace
TunicsIntimai
Endotheliumlinesthe lumen of allvesselsbarrier exchange function
In vesselslarger than1mm a subendothelial layerofbasementmembrane 2 connectivetissue is present
Blood Vesselsi
Deliverysystemof dynamic structuresthatbeginsorends at the heart
Arteriesi carrybloodaway from the heart oxygenatedexceptfor pulmonarycirculation or
umbilicalvessels of a fetus
Capillariesi contact tissue cells s directly serve cellular needs
Veinsi carrybloodtoward the heart
Vascular components overview Structures ofBlood Vessel Walls
Arteries Arterioles capillaries venules veins
Arteries r Viens
Tunicaintimatunicamedia tunicaexterna
Capillaries
Endothelium w
sparse basal lamina
Lumen
central bloodcontainingspace
TunicsIntimai
Endotheliumlinesthe lumen of allvesselsbarrier exchange function
In vesselslarger than1mm a subendothelial layerofbasementmembrane 2 connectivetissue is present