alleryThe excretory unit of the human kidney is
AThe nephron in the cortex region
BThe pyramid in the medulla region
CThe hilum near the renal artery
DThe calyx within the renal pelvis
Answer & Solution
Correct answer: A. The nephron in the cortex region
Each kidney has about a million nephrons.
Each nephron has a Malpighian (renal) corpuscle plus a tubule (PCT, Henle's loop, DCT) and drains into a collecting duct.
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