Joints Classified by Shapes and Motions Allowed Flashcards
Translators motion across flat joint surfaces in opposition
Plane synovial joint
Plane synovial joint example
Zygapophyseal joint
Unilateral joint allowing motion with one degree of freedom
Ginglymus (hinge) joint
Ginglymus joint example
Elbow joint
Joint that only allows (uniaxial) rotation of a bone around a single axis
Trochoid (pivot) joint
Trochoid joint examples
- Medial atlantoaxial joint
- Radioulnar joint
Joint with two convex condyles articulating with two concave joint surfaces
Bicondyloid joints
Bicondyloid joint movement
Mostly uniaxial with some rotatory movement
Bicondyloid joint examples
- Femoral condyles and tibial plateau
- Temperomandibular joint
- Atlantooccipital joint
Oval ellipsoid convex surface articulates with oval ellipsoid concave surface
Ellipsoid (condyloid) joints…😑
Ellipsoid joint movement
Biaxial (flex and extend, adduct and abduct)
Ellipsoid joint examples
- Distal radius with scaphoid
- Lunate in wrist
Two concave-convex surfaces articulating with each other
Sellar (saddle) joints
Sellar (saddle) joint movement
Multiaxial
Sellar (saddle) joint example
Pollical carpometacarpal (thumb) joint