Question

Column of Bertini in the kidneys of mammals is formed as an extension of_____.

• A. Pelvis in the ureter.
• B. Cortex in the pelvis.
• C. Medulla in the pelvis
• D. Cortex in the medulla.

Answer 1

The correct option is D

Cortex in the medulla.

The correct option is D.

Explanation of the correct option:

1. The outer cortex and the inner medulla are the two regions of the kidney.
2. Conical masses can be seen in the medulla.
3. The term "medullary pyramids" refers to this.
4. Between the renal pyramids is a medullary extension of the renal cortex called the column of Bertini, also referred to as the renal column.
5. It makes it possible to better anchor the cortex.
6. Blood vessel, urinary tube, and fibrous material lines make up each column.

Explanation of the incorrect options:

Option A:

1. At the big end of the pelvis have roughly cup-shaped extensions called calyces.
2. These are cavities where urine gathers before continuing on to the urinary bladder.

Option B:

1. Between the renal pyramids is a medullary extension of the renal cortex called the column of Bertini
2. The funnel-shaped, dilated portion of the ureter in the kidney is known as the renal pelvis or pelvis of the kidney.
3. The renal pelvis is where the two or three primary calyces converge in humans.

Option C:

1. The cortex is extended in the medulla of the kidney.
2. The funnel-shaped, dilated portion of the ureter in the kidney is known as the renal pelvis or pelvis of the kidney.
3. The renal pelvis is where the two or three primary calyces converge in humans.

Final answer:

Therefore, the column of Bertini in the kidneys of mammals is formed as an extension of cortex in the medulla.