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Gray's subject #70 284
Dorlands/Elsevier s_32/12776698

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


A synarthrosis is a type of joint which permits little or no mobility. Most synarthrosis joints are fibrous.

Suture joints and synchondroses are synarthroses.[1]


They can be categorised by how the two bones are joined together:

  • Synchondroses are joints where the two bones are connected by a piece of cartilage.
  • Synostoses are where two bones that are initially separted eventually fuse together, essentially becoming one bone. In humans the plates of the cranium fuse together as a child approaches adulthood. Children whose craniums fuse too early may suffer deformities and brain damage as the skull does not expand properly to accommodate the growing brain, a condition known as craniostenosis.


  1. "Module - Introduction to Joints". Retrieved 2008-01-29.

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