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Ligament Joint cavity (contains synovial fluid) Figure 8.3 General structure of Articular (hyaline) a synovial joint. cartilage Fibrous capsule Articular Synovial capsule membrane Periosteum (a) Suture Joint held together with very short, interconnecting fibers, and bone edges interlock. Found only in the skull. (b) Syndesmosis (c) Joint held together by a ligament. Fibrous tissue can vary in length, but is longer than in sutures. Gomphosis “Peg in socket” fibrous joint. Periodontal ligament holds tooth in socket. Figure 8.1 Fibrous joints. Suture line Fibula Tibia Socket of alveolar process Root of tooth Dense fibrous connective tissue Ligament Periodontal ligament (a) Suture Joint held together with very short, interconnecting fibers, and bone edges interlock. Found only in the skull. Figure 8.1a Fibrous joints. Suture line Dense fibrous connective tissue (b) Syndesmosis Joint held together by a ligament. Fibrous tissue can vary in length, but is longer than in sutures. Figure 8.1b Fibrous joints. Fibula Tibia Ligament (c) Gomphosis “Peg in socket” fibrous joint. Periodontal ligament holds tooth in socket. Figure 8.1c Fibrous joints. Socket of alveolar process Root of tooth Periodontal ligament (a) Synchondroses Bones united by hyaline cartilage Sternum (manubrium) Epiphyseal plate (temporary hyaline cartilage joint) Joint between first rib and sternum (immovable) Figure 8.2 Cartilaginous joints. (b) Symphyses Bones united by fibrocartilage Body of vertebra Fibrocartilaginous intervertebral disc Hyaline cartilage Pubic symphysis (a) Synchondroses Figure 8.2a Cartilaginous joints. Bones united by hyaline cartilage Epiphyseal plate (temporary hyaline cartilage joint) Sternum (manubrium) Joint between first rib and sternum (immovable) (b) Symphyses Bones united by fibrocartilage Figure 8.2b Cartilaginous joints. Body of vertebra Fibrocartilaginous intervertebral disc Hyaline cartilage Pubic symphysis f Nonaxial Uniaxial Biaxial Multiaxial Figure 8.7a Types of synovial joints. c b a Plane joint (intercarpal joint) a e d f Nonaxial Uniaxial Biaxial Multiaxial Figure 8.7b Types of synovial joints. c b b Hinge joint (elbow joint) a e d f Nonaxial Uniaxial Biaxial Multiaxial Figure 8.7c Types of synovial joints. c b c Pivot joint (proximal radioulnar joint) a e d f Nonaxial Uniaxial Biaxial Multiaxial Figure 8.7d Types of synovial joints. c b d Condyloid joint (metacarpophalangeal joint) a e d f Nonaxial Uniaxial Biaxial Multiaxial Figure 8.7e Types of synovial joints. c b e Saddle joint (carpometacarpal joint of thumb) a e d f Nonaxial Uniaxial Biaxial Multiaxial Figure 8.7f Types of synovial joints. c b f Ball-and-socket joint (shoulder joint) a e d Ligament Joint cavity (contains synovial fluid) Figure 8.3 General structure of Articular (hyaline) a synovial joint. cartilage Fibrous capsule Articular Synovial capsule membrane Periosteum Figure 8.5a Movements allowed by synovial joints. Gliding (a) Gliding movements at the wrist Hyperextension Extension Figure 8.5b Movements allowed Flexion by synovial joints. (b) Angular movements: flexion, extension, and hyperextension of the neck Extension FigureHyperextension 8.5c Movements allowed Flexion by synovial joints. (c) Angular movements: flexion, extension, and hyperextension of the vertebral column Flexion Extension Figure 8.5d Movements allowed by synovial joints. Flexion Extension (d) Angular movements: flexion and extension at the shoulder and knee Abduction Figure 8.5e Movements allowed by synovial joints. Adduction Circumduction Rotation Figure 8.5f Movements allowed by synovial joints. Lateral rotation Medial rotation Pronation (radius rotates over ulna) Supination (radius and ulna are parallel) Figure 8.6a Special body movements. (a) Pronation (P) and supination (S) Dorsiflexion Figure 8.6b Special body movements. Plantar flexion (b) Dorsiflexion and plantar flexion Figure 8.6c Special body movements. Inversion (c) Inversion and eversion Eversion Figure 8.6d Special body movements. Protraction of mandible Retraction of mandible (d) Protraction and retraction Figure 8.6e Special body movements. Elevation of mandible Depression of mandible (e) Elevation and depression Opposition Figure 8.6f Special body movements. (f) Opposition Fibular collateral ligament Posterior cruciate ligament Medial condyle Lateral condyle of femur Tibial collateral ligament Lateral meniscus Anterior cruciate ligament Tibia Medial meniscus Patellar ligament Fibula Patella Quadriceps tendon (e) Anterior view of flexed knee, showing the cruciate ligaments (articular capsule removed, and quadriceps tendon cut and reflected distally) Medial femoral condyle Anterior cruciate ligament Figure 8.8f The knee joint. Medial meniscus on medial tibial condyle Patella (f) Photograph of an opened knee joint; view similar to (e) Figure 8.13c The Superior view temporomandibular (jaw) joint. Outline of the mandibular fossa (c)Lateral excursion: lateral (side-to-side) movements of the mandible Figure 8.14 Arthroscopic photograph of a torn medial Torn meniscus. meniscus LYME DISEASE