pyramidal bone
- noun
- /ˈpɪrəmɪdəl boʊn/
- Specialized
:
hueso piramidal
- The pyramidal bone is located on the ulnar side of the wrist.
Examples
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Fractures of the pyramidal bone are uncommon compared to other carpal bones.
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On an X-ray, the doctor pointed to the pyramidal bone as the source of pain.
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The pyramidal bone is essential for wrist mobility.
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I fractured my pyramidal bone during the game.
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The pyramidal bone is important because it connects the wrist to the hand.
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During surgery, the surgeon carefully examined the pyramidal bone for any damage.
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An injury to the pyramidal bone can lead to limited movement in the wrist.
Synonyms
1
9.9
A small three-sided bone in the wrist near the little finger
A small bone in the wrist near the little finger
A small bone in the wrist near the little finger that connects to other wrist bones
A small wrist bone on the little finger side next to the lunate and pisiform bones
A small bone in the wrist that connects to the pisiform, hamate, and lunate bones
Surface Forms
Morphology
The phrase literally denotes a bone that is pyramid-shaped: combining 'pyramidal' (having a pyramid-like form) with 'bone' yields a straightforward, compositional meaning. Even though it is a technical anatomical label (triquetral), the basic sense is predictable from the constituents and follows a common adjective+noun pattern, so learners who know both words can infer it.
Etymology
Pyramidal bone gets its name from its small pyramid shape and pyramidal means 'like a pyramid'. An older name, 'triquetral', also points to its three-cornered shape, so the name helps you remember it is a small, triangle-like wrist bone.