pyramidal bone
Học thuậtThân thiện
Definition
Noun: - A small, wedge-shaped carpal bone in the wrist: The pyramidal bone (also known as the triquetrum or triquetral bone) is one of the eight small bones that make up the wrist (carpus). It is located in the proximal row of carpal bones on the medial (ulnar) side of the wrist.
Usage
The term "pyramidal bone" is a specific anatomical term used primarily in medical, anatomical, and biological contexts to describe a particular structure in the human body. - The X-ray revealed a fracture in the patient's left pyramidal bone. - In anatomy class, we learned that the pyramidal bone articulates with the pisiform, hamate, and lunate bones.
Advanced Usage
- Clinical Context: The term is used in diagnoses, surgical reports, and medical discussions concerning wrist injuries or conditions like fractures, ligament tears, or arthritis.
- The surgeon performed an open reduction and internal fixation on the fractured pyramidal bone.
Variants and Related Words
- Triquetrum (n): The more common modern anatomical term for the pyramidal bone.
- Triquetral bone (n): Another synonym for the pyramidal bone or triquetrum.
- Carpal bones (n): The group of eight bones in the wrist, which includes the pyramidal bone.
Synonyms
- Triquetrum
- Triquetral bone
- Os triquetrum (Latin-derived term)
Related Terms (Not Synonyms)
- Pisiform: A small, pea-shaped carpal bone that articulates with the pyramidal bone.
- Hamate: A carpal bone in the distal row that articulates with the pyramidal bone.
- Lunate: A crescent-shaped carpal bone in the proximal row that articulates with the pyramidal bone.
- Carpus: The scientific term for the wrist, or the group of carpal bones collectively.
Noun
- a wrist bone that articulates with the pisiform and hamate and lunate bones