rganautaJoint in 3D
A movable joint: bones with hyaline cartilage at their ends, a fibrous capsule with a synovial membrane that produces lubricating fluid, ligaments that…
Explained for every age
For kids (7–11)
Where two bones meet and move, like the knee or the elbow. The ends are covered with smooth, slippery cartilage, and a capsule with fluid oils them. The muscle pulls on the bone and bends it.
For teens (12–16)
A movable joint: bones with hyaline cartilage at their ends, a fibrous capsule with a synovial membrane that produces lubricating fluid, ligaments that limit movement and sometimes menisci that spread the load. Hinge joints (elbow; the knee is a modified hinge that also rotates a little) flex and extend; ball-and-socket joints (shoulder, hip) turn in all directions.
Pre-Med (17+)
Diarthrosis: avascular articular hyaline cartilage (nourished by synovial fluid), fibrous capsule, synovial membrane (type A and B synoviocytes; hyaluronic acid and lubricin), intra- and extracapsular ligaments, fibrocartilage menisci, bursae. Types: plane, hinge, pivot, condyloid, saddle, ball-and-socket. Movements: flexion–extension, abduction–adduction, rotation, circumduction.
What you can explore
Articulating bonesArticular cartilageMeniscusJoint capsule and synovial fluidLigamentsSkeletal muscle and tendon
Missions
- The body's hinge Explorer
- Parts of a joint Discoverer
- Joint examination Pre-Med