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Diarthrodial (jmg)
Types and descriptions of Diarthrodial joints
Question | Answer |
---|---|
Structural classification of all Diarthrodial joints | Synovial (most common type of joint found in human body) |
Types of Diarthrodial Joints | Arthrodial (Gliding) Ginglymus (Hinge) Trochoid (Pivot) Condyloid (Knuckle) Enarthrodial Sellar(Saddle) |
Arthrodial Joint | Ex-Vertebral Facets, Intercarpal/Intertarsal joints Motions- flexion, ext, abd, add, rot, circum Degrees-Depends on the joint |
Ginglymus Joint | Ex-Knee, Elbow, Talocrural (ankle) Motions-flex, ext Degrees- Uniaxial, 1 degree of freedom |
Trochoid Joint | Ex-atlantoaxial, odontoid, proximal/distal radio-ulnar joints. Degrees of Freedom- uniaxial, 1 degree of freedom |
Condyloid Joint | Ex- 2,3,4,5 metacarpophalangeal joints, radiocarpal joints Motions- Flex, Ext, abd, add, circum, diag abd/add Degrees of freedom-biaxial, 2 *Biaxial Ball and socket joint. Articular bones have concave and convex ends |
Enarthrodial Joint | Ex- Hip and Shoulder Motions- flex, ext, abd, add, rot, circum Degrees of freedom- Triaxial, 3 *Triaxial ball and socket joint |
Sellar Joint | Ex- 1st metacarpophalangeal Motions- flex, ext, abd, add, circum, slight rot Degrees of freedom- triaxial, 3 *Unique |