BIOL 3312 Lecture Notes - Lecture 9: Appendicular Skeleton, Axial Skeleton, Synovial Joint
Document Summary
Set 9 joints: rigid elements of the skeleton meet at joints or articulations, greek root arthro means joint, articulations can be: Enables resistance to crushing, tearing, and other forces joints: joints can be classified by function or structure, functional classification - based on amount of movement, synarthroses. Common in appendicular skeleton classifications of joints: structural classification based on: Structural classifications include: fibrous, cartilaginous, synovial fibrous joints, bones connected by fibrous connective tissue, no joint cavity, typically. Joint held together with very short, interconnecting fibers, and bone edges interlock. Found only in the skull. syndesmosis (type of fibrous joint) Fibrous tissue can vary in length but is longer than in sutures. Bones are united by cartilage: no joint cavity, two types. Circular movement of a limb at the far end supination: forearm rotates laterally, palm faces anteriorly pronation, forearm rotates medially, palm faces posteriorly dorsiflexion. Lifting the foot so its superior surface approaches the shin plantar flexion.
