| Question |
Answer |
| 4 Categories of Joints: | Synostosis, Synarthrosis, Amphiarthrosis, Diarthrosis |
| Synostosis: | Bony Joints |
| 2 Bones, Gap between and fused together: | Synostosis |
| Example of a Synostosis joint: | Mandable; Frontal bone |
| Fontanel: | Soft spot in infants cranium |
| Covered in fibrous membrane, allows head to pass through birth canal: | Fontanel |
| Synarthrosis: | Fibrous joints bound together by short collagen fibers |
| Little to no movement: | Synarthrosis joints |
| 3 Types of Synarthrosis: | Sutures, Gomphoses, Syndesmoses
|
| Sutures: | Joints between cranial bones |
| Gomphoses: | Joint between tooth & mandable/Maxilla |
| Syndesmoses: | Joint between Ulna & Radius; Allows some give but move as one unit |
| Little to no movement: | Synarthrosis |
| Amphiarthrosis: | 2 bones liked by cartilage |
| Some movement: | Amphiarthrosis |
| 2 types of Amphiarthrosis: | Synchondrosis; Symphysis
|
| Synchondrosis: | Joints joined by hylene cartilage |
| Examples of synchondrosis: | First rib & sternum; Metaphysis of long bone |
| Symphysis: | Bound by fibrous cartilage |
| Examples of Symphysis: | Pubic bone (birth); Joints between vertebrae |
| Diarthrosis: | Synovial Joints |
| Freely moveable joint: | Diarthrosis |
| Bursa: | Fibrous sac filled synovial fluid; Cushions bones & allows tendons to slide over joint |
| Examples of bursa: | Shoulders/Knees; High impact joints |
| Types of Diarthrosis movement: | Ball & Socket; Hinge; Pivot; Saddle; Condyloid; Gliding |
| Ball & Socket: | Shoulder & Hips |
| Hinge joint: | One direction; Knee/Elbow |
| Pivot: | Head of radius |
| Saddle Joint: | Thumb;Trapezoid/Metacarpal |
| Condyloid: | Metacarpals & philanges (knuckles) |
| Gliding: | Wrists/Ankles; Flat joints |
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