Skeletal SystemBone 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.)