BI13_Ch8 PP Outline

BI13_Ch8 PP Outline - 1 2 Joints Chapter 8 Goals Be able to...

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1 Joints Chapter 8 2 Goals Be able to classify joints based on function and structure Describe and give examples of Fbrous, cartilaginous, and synovial joints Know the di f erent classiFcation of joint movement Be able to describe the 6 classes of synovial joints Joint injuries and diseases 3 ClassiFcation of Joints DeFnition and ±unction of Joints ±unctional ClassiFcations Structural ClassiFcations 4 Articulations Joint = Articulation Place where two bones meet ±unction of joints Give skeleton mobility Hold skeleton together Articulations are the weakest parts of the skeleton Still can resist many forces 5 ClassiFcation of Joints DeFnition and ±unction of Joints ±unctional ClassiFcations Structural ClassiFcations 6 ±unctional ClassiFcations Classify based on how much movement Synarthroses Immovable Typically on axial skeleton Amphiarthroses Slightly moveable Typically on axial skeleton Diarthroses ±reely movable Typically on limbs 7 ClassiFcation of Joints DeFnition and ±unction of Joints ±unctional ClassiFcations Structural ClassiFcations 8 Structural ClassiFcations Classify based on material binding bones together ±ibrous
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Bones joined by collagen fbers Cartilaginous Bones joined by cartilage Synovial Joint lined with synovial membrane We will examine by structural classifcation 9 Three Basic Joints Fibrous Joints Cartilaginous Joints Synovial Joints 10 Characteristics o± Fibrous Joints Bones are joined by fbrous tissue No joint cavity present Most are synarthroses Immovable A ±ew are amphiarthroses Slight movement 11 Sutures Only occur between bones o± skull Space between bones flled with short connective tissue fbers Syntoses Fibrous tissue ossifes Occurs in middle age Protects the brain 12 Syndesmosomes Bones are connected by a ligament Cord o± fbrous tissue connecting bones Vary in length Longer fbers allow more movement Still classifed as synarthroses Examples: Distal tibiofbular joint Interosseous membrane connecting radius and ulna 13 Gomphoses “Peg in socket” fbrous joint Only example in humans is a tooth in alveolar socket Periodontal ligament 14 Three Basic Joints Fibrous Joints Cartilaginous Joints Synovial Joints 15 Characteristics o± Cartilaginous Joints
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Bones are joined by cartilage No joint cavity present Two types of cartilaginous joints Synchondroses Symphyses 16 Synchondroses Bones are connected by a bar or plate of hyaline cartilage Virtually all are synchondroses Examples Epiphyseal plate in growing long bones
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BI13_Ch8 PP Outline - 1 2 Joints Chapter 8 Goals Be able to...

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