Download - Classification of articulations
CLASSIFICATION OF ARTICULATIONSBy Sadie Gordon & Bob
CLASSIFICATION OF JOINTS
Functionally Fibrous
Dense Regular Connective Tissue Cartilaginous
Cartilage Synovial
Fluid Filled Joint Cavity
Structurally Synarthrosis
Immobile Amphiarthrosis
Slightly Movable Joint Diarthrosis
Freely Mobile Joint
FUNCTIONAL CLASSIFICATION
Synarthrosis An Immobile Joint
Amphiarthrosis Slightly Mobile Joint
Diarthrosis Freely Mobile Joint
STRUCTURAL CLASSIFICATION
Fibrous Dense irregular connective tissue that holds
bone to bones No joint cavity
Cartilaginous Pad of cartilage wedged between bones No Joint cavity
Synovial Ends of bones are covered with cartilage Joint capsule is lined with synovial fluid All synovial joints are freely moveable
(diarthrotic)
FIBROUS JOINTS
Gomphosis Suture Syndesmosis
GOMPHOSIS
• Membranes that holds tooth in the Jaw• Example tooth in the Jaw Functionally classified as Synarthrosis
(immobile)
SUTURE
• Dense regular connective tissue that connects skull bones
• Example: Lambdoid Suture• Functionally Classified as Synarthrosis
SYNDESMOSIS
• Dense regular connective tissue fibers between bones
Examples: Syndesmoses are the articulations between the fibula and the fibula, and the radius and the ulna
Functionally classified as Amphiarthroses
(slightly moveable)
TYPES OF CARTILAGINOUS JOINTS
Synchondrosis Symphysis
SYNCHONDROSIS
• Hyaline cartilage plate between bones• Examples: Epiphyseal plates, and Costochondral
joints• Functional Classified as Synarthrosis
EXAMPLES OF SYNCHONDROSIS JOINTS
SYMPHYSIS
• Fibrocartilage pad between bones• Examples: Pubic symphysis, and intervertebral disc• Functional classified as Amphiarthrosis
SYNOVIAL
Uniaxial Plane joint Hinge Joint Pivot joint
Biaxial Condylar joint Saddle joint
Multiaxial Ball-and-socket joint
UNIAXIAL
• Plane joint Flattened or slightly curved faces slide across on
another Example: Intercarpal joints & Intertarsal joints Functionally Classified as Diarthrosis
• Hinge Joint Permits angular movements in a single plane Example: Elbow Joint Functionally Classified as Diarthrosis
• Pivot joint Permits rotation only Example: Atlantoaxial joint Functionally Classified as Diarthrosis
BIAXIAL
• Condylar joint Oval articular surface on one bone closely interfaces
with a depressed oval surface on another bone Examples: MP joints Functionally Classified as Diarthrosis
• Saddle joint Saddle-shaped articular surface on one bone closely
interfaces with depressed surface on another bone Example: Articulation between carpal and first
metacarpal bone Functionally Classified as Diarthrosis
MULTIAXIAL
• Ball-and-socket joint Round head of one bone rests within cup-shaped
depression in another bone Example: Glenohumeral joint, and hip joint Functionally Classified as Diarthrosis
CONCLUSION Structural
Fibrous Gomphosis Suture Syndesmosis
Cartilaginous Synchondrosis Symphysis
Synovial Uniaxial
Plane Joint Hinge Joint Pivot Joint
Biaxial Condylar Joint Saddle Joint
Mulitiaxial Ball-and-Socket Joint
Functional Synarthrosis
Immobile Amphiarthrosis
Slightly Mobile Diarthrosis
Freely Mobile