Median cubital vein

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The median cubital vein is a superficial vein of the upper limb. It is commonly used for venipuncture (taking blood) and is located in the antecubital fossa, which is the triangular area on the anterior view of the elbow.

Anatomy

The median cubital vein is a prominent vein that connects the cephalic vein and the basilic vein. It is typically found superficial to the bicipital aponeurosis, which is a broad, flat tendon of the biceps brachii muscle. The vein runs obliquely across the antecubital fossa, making it easily accessible for medical procedures.

Clinical Significance

The median cubital vein is often chosen for venipuncture due to its size and superficial location. It is less likely to move during needle insertion compared to other veins, making it a preferred site for drawing blood or administering intravenous therapy. Additionally, the median cubital vein is less likely to be surrounded by major nerves or arteries, reducing the risk of complications.

Variations

There can be variations in the anatomy of the median cubital vein. In some individuals, the vein may be absent, and the cephalic and basilic veins may connect through other superficial veins. These anatomical variations are important for healthcare professionals to consider during venipuncture to avoid complications.

Related Structures

• Cephalic vein
• Basilic vein
• Bicipital aponeurosis
• Biceps brachii
• Antecubital fossa

See Also

• Venipuncture
• Superficial veins of the upper limb
• Intravenous therapy