PYRAMIDAL BONE Meaning and
Definition
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A pyramidal bone is a small, quadrilateral-shaped bone found in the human skull, specifically located at the base of the cranium. Also known as the "interparietal bone" or "triangular bone," it is one of the variably shaped bones situated at the posterior aspect of the skull. The pyramidal bone is located between the superior borders of the occipital bone and the parietal bones, and is frequently found as a non-fused bone fragment in adults, occasionally fused to the occipital bone.
The term "pyramidal" is derived from its distinct shape, resembling a four-sided pyramid with two longer parallel sides and two shorter sides meeting at an apex. This structure is responsible for forming the posterior part of the cranial vault and contributes to the overall integrity and strength of the skull.
Although the pyramidal bone is considered a small and relatively insignificant bone, its presence can vary among individuals and populations. Its development and fusion with neighboring bones can also vary, leading to differences in morphology or absence altogether. As such, the study and examination of the pyramidal bone is of interest to anatomists, anthropologists, and forensic experts, as it may provide valuable insights into the evolutionary and developmental aspects of human skull morphology.
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Cuneiform-bone of the carpus, os triquetrum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PYRAMIDAL BONE
- oyramidal bone
- lyramidal bone
- -yramidal bone
- 0yramidal bone
- ptramidal bone
- pgramidal bone
- phramidal bone
- puramidal bone
- p7ramidal bone
- p6ramidal bone
- pyeamidal bone
- pydamidal bone
- pyfamidal bone
- pytamidal bone
- py5amidal bone
- py4amidal bone
- pyrzmidal bone
- pyrsmidal bone
- pyrwmidal bone
Etymology of PYRAMIDAL BONE
The etymology of the word "pyramidal bone" can be broken down as follows:
1. Pyramidal: The word "pyramidal" comes from the Latin word "pyramis", which means a solid figure with a polygonal base and triangular faces that meet at a single point called the vertex. This term originally referred to the shape of the pyramids in ancient Egypt.
2. Bone: The word "bone" is derived from the Old English word "ban", which also exists in Germanic and Scandinavian languages. The ultimate origin of this word is uncertain, but it may have Indo-European roots.
Therefore, the term "pyramidal bone" likely refers to a bone that has a pyramidal shape or structure.
Similar spelling words for PYRAMIDAL BONE
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