Joints in the Human Body

3 Categories of Joints Fibrous Synovial Cartilaginous Synarthrosis = no movement Skull sutures, teeth Synovial Diarthrosis = full movement Knee, elbow, hip Cartilaginous Amphiarthrosis = some movement Spine

6 Types of Synovial Joints Gliding Hinge Pivot Condyloid Saddle Ball and socket

Gliding Joints move against each other on a single plane Bones of wrist and ankles Intervertebral joints

Hinge Joints move on just one axis. Allow for flexion and extension Elbow and finger joints

Pivot Provides rotation At top of spine the atlas and axis form a pivot joint that allows the head to rotate

Condyloid Allows for circular motion, flexion, and extension Wrist joint between radius and carpal bones

Saddle Allows for flexion, extension, and other movements – but no rotation Opposable thumb

Ball and socket Freely moving joint that can rotate on any axis Hip and shoulder