cuneiform bone

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cuneiform bone

A doctor points to a cuneiform bone on an anatomical chart.

Definition
  1. Noun:
    • A small bone in the wrist: Specifically, one of the three wedge-shaped bones (the triquetral, also historically called the cuneiform bone) located in the proximal row of the carpus (wrist). It articulates with the pisiform, hamate, and lunate bones.
Usage
  • The term "cuneiform bone" is a precise anatomical term. It is used primarily in medical, biological, and anatomical contexts to describe a specific carpal bone.
  • Example: "The fracture was located in the cuneiform bone, complicating the mobility of his wrist."
Advanced Usage
  • Historical/Alternative Terminology: In older anatomical texts, the triquetral bone (os triquetrum) was sometimes referred to as the "cuneiform bone." In modern standard terminology, "triquetrum" is preferred to avoid confusion with the cuneiform bones of the foot.
    • Example: "The ancient description referenced a cuneiform bone in the wrist, which we now identify as the triquetrum."
Variants and Related Words
  • Triquetral bone (Os triquetrum): The modern anatomical name for the wrist bone historically called the cuneiform bone.
  • Cuneiform bones (of the foot): A set of three bones (medial, intermediate, lateral cuneiforms) in the midfoot. CRITICAL NOTE: This is a distinct term for foot anatomy and should not be confused with the wrist bone.
  • Carpal bones: The general category of eight small bones that make up the wrist, which includes the triquetral (cuneiform) bone.
Synonyms
  • Triquetrum: The direct synonym and modern term.
  • Os triquetrum: The Latin anatomical term.
Related Phrases/Idioms
  • . This is a technical anatomical term not typically found in idiomatic expressions.
cuneiform bone

A doctor points to a cuneiform bone on an anatomical chart.

Noun
  1. a wrist bone that articulates with the pisiform and hamate and lunate bones

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