Arthology notes

Functional degree of mobility characteristic of a synarthrosis

Immovable (provides maximum stability and no movement under normal conditions)

Fibrous synarthrotic joint found exclusively between the flat bones of the skull

Suture

Peg-in-socket fibrous synarthrosis that anchors a tooth into its bony alveolar socket

Gomphosis

Cartilaginous synarthrosis where bones are united specifically by hyaline cartilage, such as the epiphyseal plate

Synchondrosis

Immovable bony junction formed when two separate bones completely fuse together through ossification

Synostosis

Components of the intervertebral 3-joint complex

One anterior intervertebral disc (symphysis) and two posterior facet joints (gliding diarthroses)

Total number of intervertebral discs present along the adult human spine

23 (discs are absent between C1 and C2)