Lab 3: Articulations Flashcards
Definition: An immovable articulation in which the bones are united by intervening fibrous connective tissues.
Example: joints between the skull bones surrounding the brain
Synarthroses
Definition: A slightly moveable articulation
Example: Pubic symphysis of the pelvis
Amphiarthroses
Definition: Articulation that permits free movement
Example: Elbow, Shoulder, knees, and ankles
Diarthrosis or Synovial Joint
Definition: A diathrosis in which the articular surfaces glide upon each other without axial motion
Example: Wrist joint
Gliding Joint
Definition: A type of synovial joint that exists in the body and serves to allow motion primarily in one plane
Example: Fingers, Toes, Elbows, Knees, and Ankles
Hinge Joint
Definition: A freely moveable joint (Diathrosis) that allows only rotational movement around a single axis.
Example: Joints in the neck that allow the head to turn, and the joints between the radius and ulna that allow the forearm rotate.
Pivot Joint
Definition: A modified biaxial ball-and-socket joint in which the joint surfaces are elongated
Example: The wrist
Ellipsoid Joint
Definition: A joint that has a saddle shaped articular surface that are convex in one direction and concave in the other allowing free movement in all directions except axial rotation
Example: Carpometacarpal joint of the thumb
Saddle Joint
Definition: A joint in which the rounded surface of a bone moves within a depression on another bone.
Example: The shoulder and the wrist
Ball and Socket Joint
