Source dorsal digital veins TA A12.3.08.025 | Dorlands
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Drains to dorsal venous network of hand Artery dorsal metacarpal arteries Latin venae metacarpales dorsales | ||
The dorsal digital veins from the adjacent sides of the fingers unite to form three dorsal metacarpal veins, which end in a dorsal venous net-work opposite the middle of the metacarpus.
They are a popular site for peripheral venous cannulation because they tend to be prominent veins which are easily accessible and do not lie over a point of flexion - so are not too uncomfortable for the patient.
References
Dorsal metacarpal veins Wikipedia(Text) CC BY-SA