Chapter 16: Musculoskeletal System key terms with verified answers 2025/2026 1.Acute: (usually <6 weeks) 2.chronic: (usually >12 weeks) 3.Localized: (monoarticular) 4.diffuse: (polyarticular) 5.Articular structures: include the joint capsule and articular cartilage, the synovi- um and synovial fluid, intra-articular ligaments, and juxta-articular bone. 6.Synovial fluid: provides nutrition to the adjacent relatively avascular articular cartilage. 7.Articular cartilage: composed of a collagen matrix containing charged ions and water, allowing the cartilage to change shape in response to pressure or load, acting as a cushion for underlying bone 8.Extra-articular structures: include periarticular ligaments, tendons, bursae, muscle, fascia, bone, nerve, and overlying skin 9.Ligaments: rope-like bundles of collagen fibrils that connect bone to bone 10.Tendons: collagen fibers connecting muscle to bone 11.Bursae: pouches of synovial fluid that cushion the movement of tendons and muscles over bone or other joint structures 12.Articular disease typically involves:: swelling and tenderness of the entire