Joints are structurally classified as:
- fibrous
- cartilaginous
- synovial
Joints are functionally classified as:
- synarthrotic (immovable)
- amphiarthrotic (partially movable)
- diarthrotic (freely movable)
Which joints lack synovial fluid?
- fibrous
- cartilaginous
What is an example of a fibrous joint?
Sutures that hold the skull bones.
If fibrous joints are immovable, then functionally they are:
synarthrotic.
What is an example of a cartilaginous joint?
- pubic symphysis
- epiphyseal plate
- intervertebral discs
Cartilaginous joints permit ___ movement, therefore they are ___.
little, aphiarthrotic.
Synovial joints have a synovial cavity. The bones they articulate have what?
They are covered by articular cartilage.
What does synovial fluid do?
Lubricates and reduces friction in the joint.
Which joints have a nerve and blood supply?
Synovial joints
What are synovial joints functionally classified as?
diarthrotic
Name some examples of diarthrotic (synovial) joints.
- hip
- knee
- elbow
- shoulder joint
What do bursae do?
Cushion movement.
What kind of movement is happening in the picture?
What kind of movement is happening in the picture?
What kind of movement is happening in the picture?
What kind of movement is happening in the picture?
What kind of joint is the knee joint?
A hinge joint
What do the menisci of the knee joint do?
Provide extra protection for shock absorption.