V. Intro to Basic Arthropology: Contemporary Classification: Synovial Fluid Joints or Diarthrosis Flashcards
What are the four consistent features of synovial (diarthrosis) joints?
articular or fibrous capsule, synovial membrane, articular cartilage and synovial fluid
What movements are accomodated by arthrodial synovial joints?
translational movement, a plane or gliding movement
What are examples of synovial plane (diarthrosis arthrodial) joints?
most zygapophyses of the vertebral column
Diarthrosis trochoid joints are commonly called ____ joints based on action.
synovial joint
What are the examples of synovial pivot (diarthrosis trochoid) joints?
median atlanto-axial joints
What is the shared morphological characteristic of diarthrosis trochoid joints?
an osseous pivot joint and an osteo-ligamentous ring
What is a common name for the diarthoris sellar joint?
synovial saddle joint
What example of synovial saddle (diarthrosis sellar) joint is identified along the spine?
the joint of Luschka of typical cervicals is a modified sellar joint
Which joint classification exhibits a knuckle shaped surface on one side of the joint and a concave surface on the other side?
diarthrosis condylar
What examples of a diarthrosis condylar joint is identified along the spine?
the atlanto-occipital joint may be classified as a diarthrosis condylar joint
Which joint classification exhibits a knuckle-shaped surface on one side of the joint and an elliptical, concave surface of the other side?
diarthrosis ellipsoidal
What is an example of the diarthrosis ellipsoidal joint?
the atlanto-occipital joint of the spine
Which synovial joint classifications are now often interchanged in textbooks?
ellipsoidal and condylar synovial joints
