Joints Flashcards
Syndesmosis (Fibrous, Amphiarthroses)
An immovable joint or slightly moveable joint united by sheets or fibrous tissue. The inferior tibiofibular joint.
Suture (Fibrous, Synarthroses)
An immovable joint occurring only in the skull. In this joint the interlocking bones are held tightly together by strong connective tissues. The sutures of the skull.
Gomphosis (Fibrous, Synarthroses)
An immovable joint occurring only in the roots of the teeth. The roots of the teeth that lie in the alveolar sockets are held in place by fibrous periodontal ligaments.
Symphysis (Cartilaginous, Amphiarthroses)
A slightly moveable joint. The bones in this joint are separated by a pad of fibrocartilage. The ends of the bones contain hyaline cartilage. A symphysis joint is designed or strength and shock absorbency. The joint between the two pubic bones and the joints between the vertebra.
Synchondrosis (Cartilaginous, Synarthroses)
An immovable joint. This joint contains a rigid cartilage that unites two bones. The epiphyseal plate found on between the epiphysis and diaphysis of a growing long bone.
Synovial (Diarthroses)
Permit a wide range of motion, and they all are freely movable. These joints are the most complex joints in the body.
Gliding, plane (Synovial, Amphiarthroses)
Uniaxial movement. Simplest synovial joint, slight movement. Flattened or slightly wide surfaces, glide only on one plane. Intercarpal and intertarsal joints.
Hinge, ginglymus (Synovial, Amphiarthroses)
Uniaxial movement. Hinge joint permits only flexion and extension. The elbow, knee, and ankle.
Pivot, trochoid (Synovial, Amphiarthroses)
Uniaxial movement. Rotation around single axis, rounded or pointed surface of one bone articulates within within a ring formed partially by the other bone. The articulation or the atlas around the dens of the axis.
Ellipsoid, condyloid (Synovial, Amphiarthroses)
Biaxial movement, allows movement in two directions at right angles to each other. The radiocarpal joint of the wrist.
Saddle, sellar (Synovial, Amphiarthroses)
Biaxial movement, permits movement in two axes, similar to the ellipsoid joint. Articular surface of one bone is saddle shaped and the articular surface of the other bone is shaped like a rider sitting in a saddle. The carpometacarpal joint between the trapezium and the first metacarpal is the only saddle joint in the body.
Ball and socket, spheroid (Synovial, Amphiarthroses)
Multiaxial movement, permits movement in many axes. The round head of the bone rests within the cup shaped depression of the other bone. The hip and shoulder.
Fibrous Joints
Do not have a joint cavity. They are united by various fibrous and connective tissues or ligaments. These are the strongest joints in the body because they are virtually immovable.
Cartilaginous Joints
They do not have a joint cavity. They are virtually immovable. Hyaline cartilage or fibrocartilage unites these joints.