Final answer:
A synarthrosis joint is immovable and provides a strong union between bones. Examples include sutures in the skull and the manubriosternal joint in the sternum.
Step-by-step explanation:
The immovable type of joint is called a synarthrosis.
These joints provide a strong union between the bones and are important at locations where protection for internal organs is needed.
Examples of synarthrosis joints include sutures in the skull and the manubriosternal joint in the sternum.