Key Terms
Examples
Intervertebral discs, pubic symphysis, syndesmosis joints
Location
Root of each tooth anchored into jaw socket (maxilla or mandible) Connecting tissue: Periodontal ligaments Functional cl
Functional class
Amphiarthrosis (slightly moveable)
Synostosis
When connective tissue between bones ossifies and converts to bone, fusing the bones permanently. Happens at some skull
Synarthrosis (immobile) Also called
Peg-and-socket joint
Cartilage type
Fibrocartilage Functional class: Amphiarthrosis (slightly moveable) Key trait: Strong but allows limited movement; fibro
Defining feature
Joint cavity.
Functions
Padding, shock absorption, smoother movement, or bone unification
Common sites
Shoulder, hip, knee, elbow. "Student's elbow" = olecranon bursitis.
Only two in the body
Shoulder and hip.
Movement
Depression/elevation (opening/closing), protraction/retraction, lateral/medial excursion Opening requires both hinge mot
Articulation
Mandibular condyle with mandibular fossa and articular tubercle of temporal bone Has an articular disc between the bones
Type
Uniaxial hinge Bones: Talus + distal tibia + medial malleolus (tibia) + lateral malleolus (fibula) Movement: Dorsiflexio
Sequence of ligament injury in severe inversion
Anterior talofibular first, calcaneofibular second, posterior talofibular third.
Treatment for most sprains
RICE (Rest, Ice, Compression, Elevation).