Joints Flashcards
Fibrous Joints
have no space and are held together by fibrous connective tissue.
Cartilaginous Joints
are joints held together with cartilage with no joint cavity.
Synovial Joints
are freely movable joints with a joint cavity surrounded by an articular capsule.
Bursae
are fibrous sacks with synovial membrane and lubricated with synovial fluid, functioning as a cushion in areas of pressure.
Suture
Immovable Fibrous
Bones separated by a thin fibrous layer.
Ex: Found only is the sutures of the skull.
Gomphosis
Immovable Fibrous
Cone-shaped peg fits in socket connecting bones with periodontal ligament.
Ex: Roots of teeth in mandible and maxilla.
Synchondrosis
Immovable Cartilaginous
Connecting material is hyaline cartilage.
Ex: The junction between the epiphysis and the diaphysis of growing long bones.
Syndesmosis
Slightly Movable Fibrous
Bones held together with dense fibrous tissue.
Ex: Distal ends of fibula and tibia.
Symphysis
Slightly Movable Cartilaginous
Connected by flat disc of fibrocartilage.
Ex: Symphysis pubis and intervertebral joints.
Pivot
Freely Movable Synovial
Rounded bone rotates in a ring made of bone and ligament.
Ex: Joint at proximal ends of radius and ulna and the joint between axis and atlas.
Hinge
Freely Movable Synovial
Allows movement only in one plane.
Ex: Elbow, knee, interphalangeal joints.
(i.e. Flexion/ Extension)
Ball and socket
Freely Movable Synovial
Ball-like surface fits into cuplike socket.
Ex: Hip and shoulder Joint.
Gliding
Freely Movable Synovial
Flat articulating surfaces.
Ex: Intertarsal and intercarpal joints.
Saddle
Freely Movable Synovial
Two saddle-shaped bones fit together.
Ex: Joint between thumb metacarpal and wrist carpal (trapezium)
Condyloid Ellipsoid
Freely Movable Synovial
Oval-shaped condyle fits into ellipsoidal socket.
Ex: Joint between carpals and radius.
