Question | Answer |
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 |