Approximately what percent of body weight is bone?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Approximately what percent of body weight is bone?

Explanation:
Bone mass relative to the body's total weight is about one-fifth. In a typical healthy adult, the skeleton accounts for roughly 20% of body weight, so a person weighing 70 kilograms would have around 14 kilograms of bone. This proportion is a useful general estimate, though the exact amount can vary a bit with age, sex, and body size. Options that suggest 10% would underestimate bone mass, while 30% or 40% would greatly overestimate it for a normal adult.

Bone mass relative to the body's total weight is about one-fifth. In a typical healthy adult, the skeleton accounts for roughly 20% of body weight, so a person weighing 70 kilograms would have around 14 kilograms of bone. This proportion is a useful general estimate, though the exact amount can vary a bit with age, sex, and body size. Options that suggest 10% would underestimate bone mass, while 30% or 40% would greatly overestimate it for a normal adult.

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