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Joints
Ball & Socket, Ellipsoid, Hinge, Saddle, Gliding, Pivot
Question | Answer |
---|---|
This joint does circumduction | Ball & Socket joint |
Example of a ball & socket joint | Shoulder |
This joint permits flexion/extension and abduction/adduction | Ellipsoid joint |
Example of an ellipsoid joint | Wrist |
This joint allows only flexion and extension; similar to movements of a door hinge | Hinge joint |
Example of a hinge joint | Elbow |
Like 2 saddles | Saddle joint |
Example of a saddle joint | Wrist |
This joint is usually in between 2 flat surfaces and allows the least amount of movement of all synovial joints, only small shifting movements are possible | Gliding joint |
Example of a gliding joint | Carpal bones in the wrist or Tarsal bones in the foot |
This joint allows one bone to rotate around the surface of another bone | Pivot joint |
Example of a pivot joint | The head |
Extension of the spine is | Bilateral contraction |
Lateral flexion of the spine is | Unilateral |
Bilateral contraction | Elevates the head by dorsally extending the upper cervical joints |
Dorsally | Dorsal is a word that refers to things that have to do with ones back ; aka dorsal fin |
Unilateral Movement | Is a movement that is produced by one limb (one arm or one leg) |
Bilateral Movement | Is a movement that is produced by both limbs working together (two arms or two legs) |