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21 Cards in this Set
- Front
- Back
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Arthrology |
Study of joint structure, function, and dysfunction |
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4 Types of Joints |
1. Bony 2. Fibrous 3. Cartilagenous 4. Synovial |
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Bony Joint |
Synostosis
Immovable joint formed when the gap between two bones ossification and become one bone
Frontal bone suture in infants Epiphysis in adults |
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Fibrous Joint |
Synarthrosis Point at which adjacent bones are bound by collagen fibers that emerge from one bone and penetrate into the other |
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3 Types of Fibrous Joints |
1. Sutures 2. Gomphosis 3. Syndesmosis |
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Suture |
Immovable or only slightly movable fibrous joints that closely bind the bones of the skull to each other |
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Gomphoses |
The attachment of a tooth to its socket The tooth is held firmly in place by a fibrous ligament |
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Syndesmoses |
Fibrous joints at which two bones are bound by longer collagenous fibers Bones have more mobility |
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Cartilagenous Joint |
Amphiarthrosis
Two bones are linked by cartilage |
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2 Types Cartilagenous of Joints |
1. Synchondroses 2. Symphyses |
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Synchondroses |
Joints in which the bones are bound by hyaline cartilage
First rib to sternum |
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Symphyses |
Two bones joined by fibrocartilage Joints between two vertebrae Pubic symphysis |
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Synovial Joint |
Diarthrosis Most common Most structurally complex Freely movable |
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Structure of Synovial Joint |
Articular cavity Articular cartilage Articular capsule |
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Tendon |
Attaches muscle to bone Collagen Stabilizes the joint |
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Functions of the Bursa |
1. Cushion muscle 2. Help tendons slide more easily over bones 3. Enhance mechanical advantage of a muscle |
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Synovial Membrane |
Inner layer of joint (articular) capsule
Produces/secretes synovial fluid
Made of hyaluronic acid |
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Joint (articular) Capsule |
2 layers: 1. Fibrous capsule 2. Synovial membrane |
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Fibrous Capsule |
Outer layer of joint (articular) capsule Encloses joint cavity, unites articular bones Dense irregular fibrous tissue |
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Classes of Synovial Joints |
1. Ball and socket 2. Condylar (ellipspid) 3. Saddle 4. Plane (gliding) 5. Hinge 6. Pivot |
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Ligament |
Attaches bone to bone |
