Larger veins have a simailar archiecture to arteries, though thinner walled.
Larger veins have a simailar archiecture to arteries, though thinner walled.
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The main distinguishing feature of veins is their posession of valves.
The main distinguishing feature of veins is their posession of valves.
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==Developmental pathology==
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'''Obstruction''' of the venous circulation creates high pressure in the capillary beds surrounding the affected area. As a result, edema and/or effusion are very common clinical signs seen in these types of diseases. Some specific examples of venous diseases are detailed below including Budd-Chari-Like syndrome, Portal Vein Thrombosis, and Cranial Vena Cava Syndrome.
seen in racehorses after exertion. Pulmonary vessels rupture leading to pulmonary haemorrhage.[[Category:Cardiovascular_System_-_Pathology]][[Category:To_Do_-_Cardiovascular]]