Renal columns
Renal Columns
The Renal Columns (pronunciation: /ˈriːnəl ˈkɒləmz/), also known as columns of Bertin, are extensions of the cortex in the kidney that project into the medulla and separate the most innermost portions of the renal pyramids.
Etymology
The term "Renal Columns" is derived from the Latin word renalis meaning "of the kidneys" and the Latin word columna meaning "pillar". The term "columns of Bertin" is named after the French anatomist Exupère Joseph Bertin (1712–1781) who first described them.
Structure
Renal Columns are made up of lines of blood vessels and urinary tubes and are supported by a fibrous material. They are located in between the renal pyramids. The renal columns also serve to divide the kidney into 6-8 lobes and provide a supportive framework for vessels that enter and exit the cortex.
Function
The primary function of the Renal Columns is to anchor the cortex of the kidney to the medulla. They also serve as a passage for the blood vessels from the cortex to reach the renal pyramids in the medulla.
Related Terms
- Renal Cortex: The outer portion of the kidney between the renal capsule and the renal medulla.
- Renal Medulla: The innermost part of the kidney, split up into a number of sections, known as the renal pyramids.
- Renal Pyramids: Cone-shaped tissues of the kidney that contain the nephrons responsible for filtering the blood.
- Nephron: The microscopic structural and functional unit of the kidney responsible for the filtration, reabsorption, and secretion processes.
External links
- Medical encyclopedia article on Renal columns
- Wikipedia's article - Renal columns
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