Do Veins technically connect to Arteries through a tiny capillary system? Is this True?

Do Veins technically connect to Arteries through a tiny capillary system? ...If this is true, is this capillary system acting like a bypass to take some pressure off the Artery? ...And if this is true then removing a vein could technically be removing the bypass and increasing artery pressure?

Doctor Answers 3

Arteries, arterioles, capillaries, venules, veins ...

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Arteries (largest to smallest) connect to arterioles (smallest) which end in capillaries at the level of the tissue where there is oxygen exchange and nutrient movement into tissues and removal of byproducts of metabolism. Once the blood gets out of the capillaries, it enters the smallest veins (venules) to bigger veins and so on to the vena cava and right atrium, ventricle, lung, etc. Vein removal has NO effect on capillary or arterial physiology as there are redundant veins that can accomodate the egress of blood. 

Vein Treatment does not effect Arterial Pressure

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Thank you for your question.

Yes, arteries and veins do connect through the capillary system. No, removing a vein does not have any effect on arterial pressure.  The dermal plexus of veins is very vast so there is no effect on the pressure in arteries.

I hope this helps.

J. Jason Wendel, MD, FACS
Nashville Plastic Surgeon
5.0 out of 5 stars 221 reviews

Capillaries join arterioles.

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Technically veins and arteries do join but this occurs at the lowest level called arterioles.  Removing a vein will not affect the arterial pressure in any way. 

John Landi, MD
Naples General Surgeon

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