Eminentia triangularis is a medical term used to describe a bony prominence on the inner surface of the temporal bone. The word is spelled with the IPA phonetic transcription, which helps to accurately represent the sounds of the word. In IPA, the first syllable is pronounced as "ɛmɪnənʃə," the second syllable is pronounced as "triæŋgjʊlərɪs," and the stress falls on the third syllable. This spelling ensures clarity and precision in the communication of medical information.
Eminentia triangularis is a term used to describe a specific anatomical feature in the human brain. It refers to a small, triangular prominence or protrusion located in the lower portion of the brainstem, specifically in the medulla oblongata.
The medulla oblongata is an important part of the brainstem responsible for numerous vital functions, such as regulating breathing, heart rate, blood pressure, and other autonomic functions. The eminentia triangularis is situated in the posterior aspect of the medulla oblongata, ventral to the fourth ventricle.
This triangular elevation is formed by the convergence of several neuronal fibers originating from different parts of the brainstem. It represents an important junction where fibers from various regions of the brain meet and synapse. Moreover, it has connections to other structures within the medulla oblongata, such as the vagus nerve (cranial nerve X).
The eminentia triangularis plays a key role in transmitting signals between different areas of the brain, facilitating vital functions and maintaining homeostasis in the body. Additionally, it may be involved in the regulation of autonomic responses and motor functions.
Understanding the structure and function of the eminentia triangularis is crucial for studying brainstem anatomy and pathology, as well as for diagnosing and treating related disorders or injuries that may affect its integrity and functionality.
A prominence on the posterior surface of the auricle corresponding to the fossa triangularis on the other side.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The term eminentia triangularis is derived from Latin.
- Eminentia comes from the Latin word eminens, which means standing out or prominent.
- Triangularis is derived from the Latin word triangularis, which means triangular or having three angles.
So, eminentia triangularis literally translates to triangular prominence or prominent triangle.