One of the bones in the hand; aka navicular bone.

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Multiple Choice

One of the bones in the hand; aka navicular bone.

Explanation:
The navicular bone in the wrist is the scaphoid. It’s a boat‑shaped carpal bone on the thumb side of the proximal row, just beneath the radius. The name comes from its boat-like shape. It forms part of the radiocarpal joint and contacts neighboring carpals, including the lunate medially and the trapezium/trapezoid distally. It’s a common site of fracture after a fall on an outstretched hand, and fractures can threaten blood supply to the proximal part of the bone, risking avascular necrosis. The other bones listed are different carpal bones: lunate, capitate, and trapezium.

The navicular bone in the wrist is the scaphoid. It’s a boat‑shaped carpal bone on the thumb side of the proximal row, just beneath the radius. The name comes from its boat-like shape. It forms part of the radiocarpal joint and contacts neighboring carpals, including the lunate medially and the trapezium/trapezoid distally. It’s a common site of fracture after a fall on an outstretched hand, and fractures can threaten blood supply to the proximal part of the bone, risking avascular necrosis. The other bones listed are different carpal bones: lunate, capitate, and trapezium.

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