BIOL 205 Lecture Notes - Lecture 2: Synovial Joint, Anatomical Terms Of Motion, Cartilaginous Joint
Document Summary
Introduction to articulations with emphasis on lower extremities. A joint, or articulation, is the place of contact between bones, between bone and cartilage, or between bones and teeth. Usually derived from the names of the articulating bones. Structure of joint determines both its mobility and its stability. Synovial joint has a fluid-filled synovial cavity articulating bones are enclosed within a capsule supported by ligaments. *we will use these terms as characterizations of joints. Synchondrosis: contains hyaline cartilage: symphysis: contains fibrocartilage. Most commonly known joints in the body hip joint knee joint ankle joint. Basic features: articular capsule joint cavity synovial fluid articular cartilage ligaments nerves blood vessels. Classified by the shapes of their articulating surfaces. Types of movement they allow uniaxial if the bone moves in just one plane biaxial if the bone moves in two planes multiaxial (or triaxial) if the bone moves in multiple planes.
