What does arteriovenous mean?
Arteriovenous is a technical adjective meaning relating to, or connecting, both an artery and a vein. In medicine it most often appears in the names of conditions and structures where arterial and venous circulations meet directly: an arteriovenous malformation is a congenital tangle of vessels in which blood flows from artery to vein without passing through capillaries, while an arteriovenous fistula is an abnormal — or deliberately surgical — connection between the two. The term also occurs in physiology, as in the arteriovenous oxygen difference, a measure of how much oxygen tissues extract from blood. Because arteries carry blood away from the heart under high pressure and veins return it under low pressure, any arteriovenous shortcut can strain the heart and starve downstream tissue of nutrients, which is why the word carries distinctly clinical connotations. It is formal, precise vocabulary belonging to cardiology, vascular surgery, nephrology, and anatomy.
adjectiveRelating to, connecting, or involving both an artery and a vein; especially denoting an abnormal direct connection between an artery and a vein that bypasses the capillary system.
- Relating to or connecting both arteries and veins (e.g. an arteriovenous anastomosis, a normal shunt in tissues).
- Denoting an abnormal direct passage between an artery and a vein, bypassing capillaries — as in arteriovenous malformation or arteriovenous fistula.
"The surgeon repaired the arteriovenous fistula that had formed after the injury."
"Doppler ultrasound revealed an arteriovenous fistula at the site of the earlier catheter insertion."
"The body's normal arteriovenous anastomoses in the skin help regulate temperature by diverting blood flow."
An arteriovenous malformation is essentially a plumbing shortcut in your body — blood racing from artery to vein without ever stopping at the capillaries where it's supposed to deliver its cargo.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of arteriovenous
The word is a modern scientific compound built from two Latin roots: arteria, meaning artery (itself borrowed from Greek artēria), and vena, meaning vein. Such Latin-based compounds proliferated in anatomical nomenclature from the Renaissance onward as European physicians standardized terminology, and arteriovenous follows the same pattern as related hybrids like atrioventricular and neurovascular. It shares those Latin roots with everyday derivatives such as arterial and venous.
How arteriovenous is actually used
Strictly a technical term used almost exclusively in medical and physiological contexts; it would sound out of place in general conversation. It typically appears attributively before a noun (arteriovenous malformation, arteriovenous graft) rather than predicatively.
Easily confused with arteriovenous
Intravenous means within or administered into a vein alone, whereas arteriovenous involves both arteries and veins together.