Joints Basics
This connective tissue attaches bones to bones at joints.
Ligaments
This functional classification describes non-moving fibrous joints, like those in the cranium.
Synarthrosis
This movement decreases the angle of a joint, like bending the knee during a leg curl.
Flexion
This type allows the least movement, with back-and-forth movement, like in wrist intercarpal joints.
Gliding
This largest synovial joint in the body has 13 bursae.
Knee
This is the meeting place between two or more bones, also called an articulation.
Joints
This structural classification includes joints with a fluid-filled cavity and are freely movable.
Synovial
This movement means "moving toward" the median plane, opposite of abduction.
Adduction
This joint type moves in one direction only, like a door, for flexion and extension.
Hinge
This autoimmune disease causes symmetric joint inflammation.
Rheumatoid arthritis
These structures act as bags of lubricant to reduce friction in synovial joints.
Bursae
Joints like those between vertebrae with fibrocartilaginous discs fall under this structural type.
Cartilaginous
Turning the palm to face downward or backward.
Pronation
This configuration allows opposition, like in the thumb for grasping objects.
Saddle
An anterior drawer test indicates injury to this knee ligament. A positive posterior drawer test indicates injury to this knee ligament.
ACL, PCL
This branch of science studies joint structure, function, and dysfunction.
Arthrology
This functional type is slightly movable, such as where pubic bones meet in the pelvis.
Amphiarthrosis
Moving a body part forward, like jutting out the jaw.
Protraction
This type permits rotation and twisting, like at the elbow for supination and pronation.
Pivot
This joint has the greatest range of motion but is supported by a rotator cuff.
Shoulder
This girdle provides more flexibility, while the other is sturdier for weight-bearing. (Two answers)
Pectoral girdle, pelvic girdle
Nearly all fibrous joints are functionally classified as this.
Synarthrosis
This circular movement combines flexion, extension, abduction, and adduction.
Circumduction
This synovial joint type offers the most maneuverability, like the shoulder or hip.
Ball and Socket
This degenerative joint condition is caused by wear and tear, unlike an autoimmune one.
Osteoarthritis