A medically accurate educational anatomical illustration of one full adult arm, from upper arm and elbow to wrist and hand, palm facing upward. Clearly show the superficial venous anatomy used for venepuncture: median cubital vein prominently crossing the cubital fossa, cephalic vein along the lateral/radial side, basilic vein along the medial/ulnar side, and median antebrachial vein. Include clean, subtle labels identifying each vein and a small marker at the preferred median cubital venepuncture site. Show skin semi-transparent enough to view veins, no needle, no blood, neutral clinical teaching context.