Medullary triangle is a term used in human anatomy, specifically in reference to the renal system. It is spelled /mɛˈdʌləri traɪˈæŋɡəl/, consisting of four syllables. The first syllable is pronounced as "me" with a short "e" sound, followed by "dul" with a short "u" sound. The second half of the word begins with a stressed "try" sound, followed by "ang" with a short "a" sound and ends with "gul" pronounced with a short "u" sound. Accurate phonetic transcription ensures correct pronunciation in medical terminology.
The term "medullary triangle" refers to a specific anatomical structure found in the human body, particularly within the region of the kidney. The medullary triangle can be defined as the triangular-shaped area located within the renal medulla, which is the innermost region of the kidney. This triangular area is formed by three structures: two medullary rays and one collecting duct.
In more detail, medullary rays are anatomical structures that extend from the renal cortex (outer region of the kidney) into the medulla. These rays are composed of different types of cells, including tubular cells and collecting ducts. On the other hand, the collecting duct is a part of the nephron (the basic functional unit of the kidney) that is responsible for reabsorbing water and concentrating urine.
The medullary triangle serves as an important site for urine concentration and water reabsorption. It is involved in the intricate process of filtering waste products from the blood, reabsorbing important substances, and producing urine. This triangular region is crucial for maintaining the body's fluid balance and regulating urine output. Additionally, it facilitates the removal of toxins and helps in the excretion of metabolic waste products.
In summary, the medullary triangle is a triangular area within the renal medulla of the kidney, comprising two medullary rays and one collecting duct. It plays a vital role in the filtration and concentration of urine, water reabsorption, and maintaining overall fluid balance in the body.
Capsula interna.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "medullary" comes from the Latin word "medulla", which means "marrow" or "middle". The word "triangle" traces its origins to the Latin word "triangulum", meaning "three-cornered shape". In anatomy, the term "medullary triangle" refers to a specific triangular region within the kidney.