Articulations (Joint Functions) Flashcards
What are the three classifications of a suture joint?
- Bones interlocked
- Bound by fibrous connective tissue
- Only in skull
What classifies a synchondroses joint?
- Cartilaginous bridge between bones
What classifies a syndesmoses joint?
- Bone connected by ligaments
What classifies a symphyses joint?
- Bones separated by fibrocartilage
Define the GLIDING movement of synovial joints.
Opposing surfaces sliding past one another (bones)
Define the ANGULAR movement of synovial joints.
Two joints forming an angle
Define the FLEXION angular movement.
Reducing angle between joints
Define the EXTENSION angular movement.
Increasing angle between joints
Define the ABDUCTION angular movement.
Limb moves away from midline
Define the ADDUCTION angular movement.
limb moves toward midline
Define the CIRCUMDUCTION angular movement.
Circular motion without rotation
Define the ROTATION angular movement.
Limb rotates on an axis
Define the supination movement.
Rotating in/down (forearm)
Define the pronation movement.
Rotating out/up (forearm)
Define the medial rotation movement.
Internal; rotates toward axis
Define the lateral rotation movement.
External; rotates away from axis
Define the elevation movement.
Moved in superior direction (up)
Define depression movement.
Moves in inferior direction (down)
Define the protraction movement.
Pushing forward (mandible)
Define the retraction movement.
Pulling back (mandible)
Define the inversion movement at synovial joints.
Ankle twist toward midline (medially)
Define the eversion movement at synovial joints.
Ankle twist away from midline (laterally)
Define the dorsiflexion movement at synovial joints.
Flexion at ankle (lifting toes)
Define the plantar flexion movement at synovial joints.
Extension at ankle (pointing toes)
Define the fibular collateral ligament of the knee joint.
- Fibrous band of tissue on the OUTSIDE of the knee
- Connects femur to fibula
Define the tibial collateral ligament of the knee joint.
- Fibrous band of tissue on the INSIDE of the knee
- Connects femur to tibia
Define the anterior cruciate ligament (ACL) of the knee joint.
Most anterior tissue located inside the knee.
Define the posterior cruciate ligament of the knee joint.
Most posterior tissue inside the knee.
Define the lateral meniscus of the knee joint.
C-shaped cartilage disc on the outside (lateral/fibula)
Define the medial meniscus of the knee joint
C-shaped cartilage disc on the inside of the knee (medial/tibia)
