Radial veins

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Radial veins are veins that accompany the radial artery in the forearm and hand. They are responsible for draining the lateral side of the hand and forearm.

Etymology[edit | edit source]

The term "radial" is derived from the Latin word "radius," which means "ray." In the context of anatomy, it refers to the radius bone, which is located on the thumb side of the forearm and is parallel to the ulna. The radial veins are named so because they run alongside the radius bone.

Anatomy[edit | edit source]

The radial veins begin at the dorsal digital veins in the hand. They run from the lateral side of the hand, along the forearm, and up to the elbow. Here, the radial veins merge with the ulnar veins to form the brachial veins.

The radial veins are paired and usually accompany the radial artery. However, the number of radial veins can vary, and sometimes, a single vein may be found.

Function[edit | edit source]

The primary function of the radial veins is to return deoxygenated blood from the lateral side of the hand and forearm to the heart. They carry this blood to the brachial veins, which in turn transport it to the axillary vein, and then to the subclavian vein.

Clinical significance[edit | edit source]

Due to their accessible location, the radial veins are often used for venipuncture, the process of drawing blood for diagnostic purposes. They are also used for the insertion of a peripheral venous catheter, which is used to administer medication or fluids.

Related terms[edit | edit source]

  • Vein: A blood vessel that carries blood towards the heart.
  • Radial artery: The main artery of the lateral aspect of the forearm.
  • Brachial veins: Veins that accompany the brachial artery in the upper arm.
  • Axillary vein: The vein that continues from the brachial vein and runs through the axilla (armpit region).
  • Subclavian vein: The vein that continues from the axillary vein and runs under the clavicle (collarbone).
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Radial_veins[edit | edit source]

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