Types of Joints and Bursae Ana Soldo 2013/2014 Zagreb Medical School Mentor: A. Žmegač Horvat

Types of Joints and Bursae

Ana Soldo2013/2014Zagreb Medical SchoolMentor: A. Žmegač Horvat

Joint (articulation) A coming together

of two or more bones

Joints

Diarthrosesmovable

Synarthrosesimmovable/ partially movable

Joints

Diarthrosismovable

Synarthrosisimmovable/ partially movable

Diarthrosis (synovial joint) Freely movable

joint

Articular cartilage Joint capsule

fibrous membranesynovial membrane

Joint cavity

Diarthrosis (synovial joint)

Additional components:

• Ligaments• Fat pads• Disci/Menisci• Bursae

Diarthrosis (synovial joint)

Additional components:

Ligaments – add strength to the joint capsule or limit movements

Diarthrosis (synovial joint)

Additional components:Fat pads - help to protect joints from mechanical damage

Diarthrosis (synovial joint)

Additional components:Discus/Meniscus – fibrous cartilage within a joint, increases compatibility

Diarthrosis (synovial joint)

Additional components:

Bursa – closed sac of synovial fluid, usually found beetween bones and tendons or muscles around a joint, helps to reduce friction

Diarthrosis (synovial joint)

Diarthrosis (synovial joint)

Diarthrosis (synovial joint)

Plane joint – permits slidingSacroiliac, intercarpal, intertarsal joints

Diarthrosis (synovial joint)

Hinge joint (ginglymus) – allows movement in only one directionInterphalangeal joint, joint between humerus and ulna

Diarthrosis (synovial joint)

Pivot joint – allows rotationProximal and distal radioulnar joint

Diarthrosis (synovial joint)

Saddle joint – allows movement in all directions except rotationFirst carpometacarpal joint

Diarthrosis (synovial joint)

Ellipsoid joint – allows flexion, extension, adduction, abduction, circumductionRadiocarpal joint, metacarpophalangeal joints

Diarthrosis (synovial joint)

Ball and socket joint – largest range of movementHip joint, shoulder joint

Joints

Diarthrosesmovable

Synarthrosesimmovable/ partially movable

Synarthrosis

Synostosis Syndesmosis Synchondrosis

Synarthrosis

Synostosis Syndesmosis Synchondrosis

Synostosis The joining of two bones - ossification of connecting

tissueHip bone

Synarthrosis

Synostosis Syndesmosis Synchondrosis

Syndesmosis Slightly movable joint Bony surfaces united by

connective tissue

Suture Interosseous membrane Gomphosis

Synarthrosis

Synostosis Syndesmosis Synchondrosis

Synchondrosis Cartilaginous union Mostly at younger age, during life cartilage replaced by

bone, small number remain for lifeJoint between first rib and sternum

Sustav organa za pokretanje, Werner Platzer http://hr.wikipedia.org/wiki/Zglob

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