Anatomy MCQs-4

Each adult human kidney contains around ———– nephrons

A. 0.5 million

B. 1 million

C. 5 million

D. 10 million

The kidneys receive approximately ————- of cardiac output in adult human

A. 10–15%

B. 20–25%

C. 30–35%

D. 40–45%

Arciform arteries are present in

A. Brain

B. Heart

C. Kidney

D. Liver

First branch of the renal artery is

A. superior segmental artery

B. interlobular artery

C. inferior suprarenal artery

D. arcuate artery

Renal pyramids in the medullary areas are separated by the cortical tissue called

A. Columns of morgagni

B. Line of zahn

C. Columns of bertini

D. Line of brodel


Arcuate arteries of the kidney – known as arciform arteries

1Lines of Zahn characteristic of thrombi
2Avascular plane of Brodelsection of renal parenchyma between 2/3 anterior and 1/3 posterior kidney on the cross-section that is relatively avascular
3Columns of Morgagni Anal columns – vertical folds, produced by an infolding of the mucous membrane and some of the muscular tissue in the upper half of the lumen of the anal canal.
4Column of BertinMedullary extension of the renal cortex in between the renal pyramids.

Brödel’s line

  • Avascular plane approximately at the lateral margin of the kidney,
  • Extending from the superior pole of the kidney to the lower pole of the kidney
  • Limited by the circulation of the apical segmental artery to lower segmental artery

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