gliding
There is abnormal bone formation at the place where the left collarbone meets the left shoulderblade. This bone formation as at the bottom of this joint.
collarbone is another word for the shoulderbalde
This is a synovial joint. It is classified as pivot type of joint.
Pivot joint is the type found in the neck.
.
Synovial joints
slider joint
The acromioclavicular joint is a plane, or gliding, joint.
The joint between parietal bones is classified as a fibrous joint, specifically a type of fibrous joint called a sutural synchondrosis. This type of joint is immovable and provides stability to the skull.
thumb
pivot
Pivot joint