What is the largest organ in the body?

Master Health Science I with our Anatomy, Physiology, and Medical Conditions Test. Use our quizzes and comprehensive explanations to ace your exam!

Multiple Choice

What is the largest organ in the body?

Explanation:
Size and coverage determine the largest organ in the body. The skin forms the outer boundary and covers the entire surface, with a surface area of about 1.5–2 square meters and a weight around 3 kilograms in an average adult, which makes it larger than any internal organ. Beyond being a protective barrier, the skin helps prevent fluid loss, regulate temperature, provide the sense of touch, and participate in vitamin D production. While the liver is the largest internal organ by mass, it does not surpass the skin when considering the body's total size. So the skin is the largest organ.

Size and coverage determine the largest organ in the body. The skin forms the outer boundary and covers the entire surface, with a surface area of about 1.5–2 square meters and a weight around 3 kilograms in an average adult, which makes it larger than any internal organ. Beyond being a protective barrier, the skin helps prevent fluid loss, regulate temperature, provide the sense of touch, and participate in vitamin D production. While the liver is the largest internal organ by mass, it does not surpass the skin when considering the body's total size. So the skin is the largest organ.

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