Which of the following organs has outer cortex and inner medulla?

Study for the CAMLPR Histology Practice Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which of the following organs has outer cortex and inner medulla?

The kidney shows a two-layer organization: an outer renal cortex and an inner renal medulla. The cortex contains the glomeruli and most of the proximal and distal tubules, forming the surface structure you see histologically. The medulla lies deeper and houses the loops of Henle and collecting ducts, organized into pyramid-shaped regions that extend toward the renal pelvis. This cortex–medulla arrangement directly reflects the different parts of the nephron and their roles in filtration, reabsorption, and urine concentration. Among the options, only the kidney has this distinct cortex and medulla structure. The liver is organized into lobules without a cortex/medulla division; the spleen has white and red pulp; and the heart is made of muscular tissue without a cortex/medulla division.

The kidney shows a two-layer organization: an outer renal cortex and an inner renal medulla. The cortex contains the glomeruli and most of the proximal and distal tubules, forming the surface structure you see histologically. The medulla lies deeper and houses the loops of Henle and collecting ducts, organized into pyramid-shaped regions that extend toward the renal pelvis. This cortex–medulla arrangement directly reflects the different parts of the nephron and their roles in filtration, reabsorption, and urine concentration. Among the options, only the kidney has this distinct cortex and medulla structure. The liver is organized into lobules without a cortex/medulla division; the spleen has white and red pulp; and the heart is made of muscular tissue without a cortex/medulla division.

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