alleryStart learning →What are the approximate dimensions of an adult kidney in its longest axis?
AAbout 11 to 14 cm long
BAbout 5 to 7 cm long
CAbout 20 to 24 cm long
DAbout 2 to 4 cm long
Answer & Solution
Correct answer: A. About 11 to 14 cm long
1. A kidney is roughly the size of a closed fist.
2. It measures about 11 to 14 cm in length, 6 cm in width and 4 cm in thickness.
3. The 6 cm and 4 cm figures are the width and thickness, so quoting them as length confuses the axes.
4. Weights run 125 to 175 g in males and 115 to 155 g in females, which fits an organ of that size.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section 25.3 Gross Anatomy of the Kidney_
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