Glossary of terms
Ligaments are bundles of elastic fibres, which attach bones together to form a joint.
Tendons are fibrous bands, which attach muscles to bones to help move a joint.
The sacrum is a triangular bone at the base of the spine, which articulates between the pelvic bones, and the coccyx is attached to its apex.
Discs are weight-bearing pads between vertebrae made of a fibrous matrix, which house a strong nuclear sphere.