pterion
Noun: - A craniometric point: A specific anatomical landmark on the side of the human skull. It is the point where four cranial bones—the frontal, parietal, temporal, and sphenoid—meet in an H-shaped suture.
The word pterion is a highly specialized anatomical term used exclusively in scientific, medical, and anthropological contexts to describe a precise location on the skull. - It is used to identify a standard reference point for measurements (craniometry). - It is used to describe the location of underlying brain structures, as the middle meningeal artery lies deep to it. - It is used in discussions of skull fractures or surgical approaches.
- The surgeon marked the pterion as a key landmark before the procedure.
- In forensic anthropology, the position of the pterion can help in identifying skeletal remains.
- A direct blow to the pterion region is clinically significant due to the risk of injury to the middle meningeal artery.
- Pterional approach: A common neurosurgical technique to access the brain, named for its point of entry near the pterion.
- The aneurysm was repaired using a pterional craniotomy.
- Pterional (adjective): Relating to or situated near the pterion.
- The pterional flap was carefully elevated.
- Craniometric point: A more general term for any standard measuring point on the skull.
- Anatomical landmark: A broad term for any recognizable structure used as a point of reference.
The pterion has no everyday or figurative meaning. Its sole meaning is the specific anatomical point described above. Its clinical importance stems from its relationship to the pterion, a thin area of the skull, and the underlying middle meningeal artery, making it a vulnerable site for epidural hematoma.
- the craniometric point in the region of the sphenoid fontanelle