Skeletal System

Bone Basics

What is the smallest bone in the body?

The stirrup (stapes) in the middle ear is the smallest bone in the body. It weighs about 0.0004 ounces (0.011 grams).

Anatomy of a human bone. (From Smeltzer, S. C., and Bare, B. G. Textbook of Medical-Surgical Nursing. 9th Ed. Philadelphia: Lippincott, Williams & Wilkins, 2000.)

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