PCL 4 - Types of Joints

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Joints
A joint is a location at which two or more bones make contact.
They are constructed to allow movement and provide mechanical support

Joints
Pivot joints
Hinge joints
Gliding joints
Ball and Socket joints
Saddle joints
Condyloid joints


Types of joints
Allow rotation around an axis
Allows rotation of one bone around another
In the neck, the occipital bone spins over the top of the axis


Pivot joint
Allows movement only in one plane
Allows flexion and extension
Present at the elbow


Hinge Joint
Allows bones to slide across one another in the plane of its articular surfaces
Midcarpal and Midtarsal joints are gliding joints


Gliding Joints
Most maneuverable type of joint
Allows flexion, extension, adduction, abduction, internal and external rotation
Found in both the shoulders and the hips


Ball and Socket Joints
Allows flexion, extension, adduction, abduction and circumduction
Biaxial where they allow movement in the sagittal and frontal planes
Found on the joint of the thumb


Saddle Joints
Also known as ellipsoid joint
Permits movement in 2 planes as well
Same movements as saddle joint which are flexion, extension, adduction, abduction and circumduction
Found at the wrists


Sorry this is brief its just a copy paste of the powerpoint. there will be picture on monday =)