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341 Chpt 9 joints

Synovial joints

NameDescriptionMvmts possibleExamples
Planar Joint Articulating bone surfaces are flat or nearly so side to side only intercarpal or intertarsal joints
Hinge joint 1st bone has a convex surface, 2nd a concave one Flexion, Extension, and Hyperextension Knee, elbow, ankle
Ankle Movements unique to ankle Inversion, and eversion Leads to sprains
Pivot Joint Rounded surface of 1st bone articulates w/ ring of bone or cartilage on 2nd bone allows rotation around long axis Atlas-axis joint, Proximal radioulnar joint
Condyloid Joint Oval shaped projection fits into an oval shaped depression Flexion, extension, abduction, and adduction wrist and metacarpophalangeal joints
Saddle Joint 1st bone is saddle shaped, 2nd bone resembles a rider sitting on the saddle circumduction and opposition trapezium and metacarpal 1
Ball and socket Joint Ball shaped 1st bone fits into cup shaped 2nd bone flex/ext, ad/abduction, circumduction, rotation shoulders, hips
Created by: Kayerenee