The cortex extends in between the medullary pyramids as renal columns called Columns of Bertini. Hence Columns of Bertin is the extension of cortex into the medulla. Each column consists of lines of blood vessels and urinary tubes.
So, the correct answer is 'Option A'.
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Similar Questions
Q1
Which of the following statements are false? (i) Outer cortex and inner medulla are the two zones in kidney. (ii) Medulla is divided into few renal pyramids. (iii) Pyramid projects into calyx. (iv) Inward extension of cortex between the pyramids is called renal column of Bertini.
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Q2
Differentiate between the following pairs of terms :
(a) Bowman's capsule and Malpighian capsule.
(b) Renal cortex and renal medulla.
(c) Renal pelvis and renal papilla.
(d) Urea and urine.
(e) Excretion and Catabolism.
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Q3
Consider the following statements
I. Flame cells are excretory structures in flatworms
II. Green glands are excretory organs in annelids.
III. Columns of Bertin are the conical projections of renal pelvis into renal medulla between the renal pyramids.
Which of the following statements are incorrect?
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Q4
Consider the following statements I. Flame cells are excretory structures in flatworms II. Green glands are excretory organs in annelids III. Columns of Bertini are the extensions of the renal cortex into the renal medulla between the renal pyramids.
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Q5
Consider the following statements and choose the correct option. A. Flame cells are excretory structures in flatworms. B. Green gland is excretory organs in annelids. C. Columns of Bertini are the extensions of the renal cortex into the renal medulla between the renal pyramids.