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Stack #99637

Chapter 8

Site where two or more bones meet Articulation
Function of joints Give skeleton mobility & hold the skeleton together
Three structural classification of joint Fibrous, Carilaginous, & Synovial
focuses on the material binding bones together and whether or not a joint cavity is present Stuctural classification
Based on the amount of movement allowed by the joint Functional classification
Three functional classifications are Synarthroses, Amphiarthroses, & Diarthroses
immovable joint Synarthroses
Slightly movable joint Amphiarthroses
Freely movable joint Diarthroses
Bones are joined by fibrous tissues Fibrous Structural Joints
Three types of Fibrous Structural Joints sutures, syndesmoses, & gomphoses
Occur between the bones of the skull Sutures
Coprised of interlocking juctions completely filled with connective tissue fibers Sutures
Bind bones tightly together, but allow for growth during youth Sutues
In middle age, sjull bones fuse Synostoses
Bones connected by a fibrous tissue ligament Syndesmoses
Movement varies from immovable to slightly variable Syndesmoses
Connection between the tibia & fibula and the radius & ulna Syndesmoses
Peg-in-socket fibrous joint between a tooth and its alveolar socket Gomphoses
Fibrous connection of Gomphoses is the Periodontal ligament
Articulating bones are untid by cartilage Cartilaginous joints
Two types of Cartilaginous joints Synchondroses & Symphyses
A bar or plate of hyaline cartilage unites the bones Synchondroses
Hyaline cartilage covers the articulating surface of the bone and is fused to an intervening pad of fibrocartilage Symphyses
Amphiarthrotic joints designed for strenght and flexibility Symphyses
Joints in which the articulationg vones are separated by a fluid-containing joint cavity Synovial Joints
All are freely movable diarthroses Synovial Joints
General Struture of Synovial joints Articular cartilage, Articular capsule, Joint cavity, Synovial fluid, & Reinforcing ligaments
Flattened, fibrous sacs lined with synovial membranes and containing synovial fluid Bursae
elongated bursa that wraps completely around a tendon Tendon sheath
Stability in Synovial joints is determined by Articular surfaces & Ligaments
Shape determines what movements are possible in Synovial joints Articualr surfaces
In Snovial joints unite bones and prevent excessive or undesirable motion Ligaments
Created by: wadez37