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Vena comitans

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Vena comitans

Vena comitans
The deep veins of the upper extremity. (Venae comites labeled at upper right.)
Identifiers
Gray's p.641
Anatomical terminology

Vena comitans is Latin for accompanying vein. It refers to a vein that is usually paired, with both veins lying on the sides of an artery. They are found in close proximity to arteries so that the pulsations of the artery aid venous return. Because they are generally found in pairs, they are often referred to by their plural form: venae comitantes.

Venae comitantes are usually found with certain smaller arteries, especially those in the extremities. Larger arteries, on the other hand, generally do not have venae comitantes. They usually have a single, similarly sized vein which is not as intimately associated with the artery.

Examples of arteries and their venae comitantes:

Examples of arteries that do NOT have venae comitantes (i.e. those that have "regular" veins):


External links

  • Gray's page #641
  • Photo of Venae comitantes of the brachial artery
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