Asked Mar 25, 2020

The renal pyramids are separated from each other by
extensions of the renal cortex called ________.
a. renal medulla
b. minor calyces
c. medullary cortices
d. renal columns


Expert Answer

Step 1

The kidney has a cortex that is made up of several branched structures in the inner region, known as the medulla. The renal cortex is the outer part of the kidney that consists of all nephrons. Medulla in addition to the renal column divides the kidney into 6-8 lobes and provides support to the vessels that enter and exit the cortex.

Step 2

The renal columns are extensions of connective tissue, which scatter descending from the cortex through the medulla to separate the most characteristic features of the medulla, renal pyramids, and renal papillae. Thus, the correct option is d.

The correct option is option (d) renal columns.

Step 3

The explanation for the incorrect answer:

Option (a) renal medulla: It is the inner portion of the kidney. The medulla together with the renal column divides the kidney into 6-8 lobes. Hence, it is an incorrect option.

Option (b) Minor calyces: The renal pelvis emerging from the renal hilum is developed from major and minor calyces present in the kidney. ...

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