Question

Differentiate between “Columns of Bertin” and “duct of Bellini.”

Answer 1

Hint: Ducts of Bellini are also called Papillary ducts. The duct of Bellini represents the most distal portion of the collecting duct. Columns of Bertin represent the extension of renal cortical tissue which will separate the pyramids, and as such are normal structures.

Complete step by step answer:

Columns of Bertin	Duct of Bellini
The renal column (or Bertin column, or column of Bertin) is a medullary extension of the cortex in between the renal pyramids.	Ducts of Bellini, also called Papillary ducts. The duct of Bellini represents the most distal portion of the collecting duct.
It allows the cortex to be better anchored.	They receive renal filtrate (precursor to urine) from the several medullary collecting ducts and empty into a minor calyx. Papillary ducts continue the work of water reabsorption and balance initiated within the collecting tubules.
They become of radiographic importance when they are unusually enlarged and may be mistaken for a renal mass	They receive renal filtrate (precursor to urine) from several medullary collecting ducts and empty into a minor calyx. Papillary ducts continue the work of water reabsorption and electrolyte balance initiated in the collecting tubules.

Note:
- Columns of Bertin are found in the kidney. It is the extension of the renal cortex between the renal pyramid. It allows for the better anchoring of the renal cortex. It consists of lines of blood vessels and urinary tubes and fibrous material. It separates the renal pyramid.
- The most distal portion of the collecting duct is called ducts of Bellini. They receive renal filtrate from different collecting ducts and open into the minor calyx.
Both of them are found in the Kidney.