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1. CLASSIFICATION
OF
JOINTS

2.  Definition of joint
• Joint is a junction between two or more bones or cartilages. It is a
device to permit movements.
 CLASSIFICATION OF JOINTS
• joint are classified into structure and functional
• Structural classification is determined by how the bones connect to
each other, while functional classification is determined by the
degree of movement between the articulating bones.

9.  functional classification of joints
• Base on deegre of mobility
• Like fibrous joint
• Immovable
Ex : Skull Sutures,
articulations of bony sockets and teeth in facial skeleton.
1. Synarthroses
2. Amphiarthroses
• Like secondary cartilage joint
• Slightly moveble.

10. 3. Diarthroses or synovial joints
• Like Synovial Joint.
• Freely moveble.
Ex : Knee: Full movement synovial capsule hinge .
Joint: Range of Motion and Material
Skull Sutures: Immovable fibrous joints
Vertebrae: Some movement cartilaginous joint
Ex : elbow,
shoulder,
Ankle.

11. C. Regional Classification
1. Skull type: immovable.
2. Vertebral type: slightly movable.
3. Limb type: freely movable.

12. D. According to number of articulating bones
1. Simple joint: When two bones articulate,
e.g. interphalangealjoints
2. Compound joint: More than two bones articulate
within one capsule,
e.g. elbow joint, wrist joint
3. Complex joint: When joint cavity is divided by an intra-articular
disc,
e.g., temporomandibular joint and sternoclavicular
joint.