Cosmetology Anatomy & Physiology Practice Test 2026 - Free Cosmetology Practice Questions and Study Guide

In the adult human skeleton, there are typically 206 bones. This number represents the standard count after accounting for the processes of bone fusion that occur during development. At birth, infants have about 270 bones; however, as they grow, some of these bones fuse together, leading to the final total of 206 in adults. This fusion primarily occurs in areas such as the skull, where several smaller bones combine to form larger, more stable structures. This count can vary slightly due to individual anatomical differences, but 206 is generally accepted as the norm for an adult human skeleton.