chapt09 v106 Joints

chapt09 v106 Joints - Chapter 9 Joints Arthrology is the...

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1 Chapter 9 Joints Arthrology is the study of the joints Kinesiology is the study of musculoskeletal movement
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2 2 CLASSIFICATION OF JOINTS 1. How the bones are joined fibrous, cartilaginous, bony and synovial joints 2. How the bones move We will look at this type of joint mainly
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3 Three types of Joint MOVEMENT Three ways bones move: 1. Freely 2. Slightly 3. Not at all A freely moving joint is a DIARTHROSES This includes All synovial joints Slightly moving is a AMPHIARTHROSIS No movement is a SYNARTHROSIS
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4 SYNARTHROSIS Synarthrosis ( How much does this move?), three types: 1. Suture 2. Gomphosis Teeth 3. Synchondroses (SYN= together, chrondro= cartilage Epiphyseal plate
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5 AMPHIARTHROSIS Amphiarthrosis (moves ________), two types: 1. Syndesmosis (struck rock twice) Distal tibiofibular joint (picture tibula and fibula stricking each other) 2. Symphyses Always in the midline of the body Pubic symphyses Intervertebral disc
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6 Making Sense of Joints “Cartilage becomes Bone” A Synchondrosis: 2 bones, once separate, fused by osseous tissue An example is the epiphyseal plate at the end of growing bones As the bone grows the syn chondro sis ( cartilage ) is replaced by bone and becomes a syn ost osis (ost- is bone )
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7 Synarthrosis Joints (Immovable Joint) Synathrosis Fibrous joints of collagen fibers in space between bones sutures, synchondroses, synostosis, gomphosis
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8 Amphiarthrosis (Slightly Moveable Joint) Symphysis pubic symphysis and intervertebral discs Syndesmosis Distal tibia and fibula joint
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9 Diarthrosis (Freely Moveable) I Space between bones called the synovial (joint) cavity Contains articular capsule and an articular cartilage 1. Articular capsule is composed of two layers: 1) the outer fibrous capsule lined by synovial membrane continuous with periosteum 2) the inner synovial membrane a) which secretes a lubricating and joint-nourishing synovial fluid viscous slippery fluid rich in albumin & similar to raw egg white 2. Articular cartilage hyaline cartilage covering the joint surfaces
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10 Diarthrosis (Freely Moveable) II Synovial Joint
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11 Diarthrosis (Freely Moveable) III Many diarthroses also contain accessory structures: Extracapsular and intracapsular ligaments Collateral ligaments of knee Cruciate ligaments of knee Articular discs
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This note was uploaded on 09/25/2011 for the course BSC 1085 taught by Professor Staff during the Fall '09 term at Broward College.

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chapt09 v106 Joints - Chapter 9 Joints Arthrology is the...

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