Chapter 8 Test Review Flashcards
Two methods of joint classification
Structural- anatomical structure of a joint
Functional- amount of movement permitted by a joint
Functional classifications of joints
Synarthrosis
Amphiarthrosis
Diarthrosis
Synarthrosis
Very stable, immovable joints
Amphiarthrosis
Less stable, slightly movable
Diarthrosis
Least stable, freely movable
Structural classification of joints
Fibrous
Cartilaginous
Synovial
Fibrous joints
Bones connected by fibrous tissue
Immovable
Cartilaginous joints
Bones connected by cartilage
Immovable or slightly movable
Synovial joints
Freely movable (diarthrotic)
Located at ends of longbones
Upper and lower limbs
Structure of a synovial joint
Two long bones meet and are surrounded by the articulate capsule
Synovial membrane is the inner layer surrounding the joint cavity
Synovial fluid and article cartilage reduce friction between bones
Accessory structures of synovial joints
Stabilize joints
Ligaments
Tendons
Bursae
Ligaments
Connect bones to other bones to form joints
Tendons
Connect bone to muscle
Bursae
Fluid-filled sacs that act as a cushion between bones, tendons, joints and muscles
Cushion and lubricate pints between these points
6 types of synovial joints
Plane/gliding
Hinge
Pivot
Condylar/ellipsoid
Saddle
Ball-and-socket