The juxtamedullary nephrons ________

A) are located almost entirely within the renal cortex
B) are most numerous
C) have a nephron loop that penetrates deep into the renal medulla, and play an important role in concentrating urine
D) have a nephron loop that penetrates deep into the renal medulla
E) play an important role in concentrating urine


Answer: C

Anatomy & Physiology

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