Answers

  • Brainly User
2014-08-06T21:04:46+05:30
 The tubules because of differences in length collectively form a number of conical structures called pyramids. There are renal columns (of Bertini). They represent cortical tissue contained within the medulla.
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  • Brainly User
2014-08-07T07:19:55+05:30
Column of bertini is present between the renal pyramids.
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