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Skeletal System Bone Markings

Skeletal System Bone Markings. DO NOW #1. As you come into class, write down the 4 functions of the skeletal system. When you are done, put your pencil down. DO NOW #1. 4 Functions of the Skeletal System. DO NOW #2. http://www.youtube.com/watch?v= F7rq8lhetLA. Bone Markings.

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Skeletal System Bone Markings

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  1. Skeletal System Bone Markings

  2. DO NOW #1 • As you come into class, write down the 4 functions of the skeletal system. • When you are done, put your pencil down.

  3. DO NOW #1 • 4 Functions of the Skeletal System

  4. DO NOW #2 • http://www.youtube.com/watch?v=F7rq8lhetLA

  5. Bone Markings • Not just flat, smooth and featureless • 2 categories • Projections/Processes • Depressions/Cavities

  6. Projections/Processes • Grow out from the bone • Area where muscle/ligaments attach • Form joints

  7. Projections/Processes • Tuberosity • Large, rounded projection • Ex: Tibial Tuberosity • Crest • Narrow ridge of bone; usually prominent • Iliac crest

  8. Projections/Processes • Trochanter • Large, blunt irregular shaped process • Femur • Spine • Sharp, slender, pointed projection • Spine of the scapula

  9. Projections/Processes • Line • Narrow ridge of bone • Femoral line • Epicondyle • Raised area on or above condyle • Humerus

  10. Avulsion Fracture • Tendon v. ligament? • Muscle can generate a lot of force, sometime more than the attachment site can handle • Too much force is generated, an avulsion fracture occurs • Tendon contracts, ripping the tuberosity where it is attached

  11. Avulsion Fracture

  12. Osgood-Schlatters • Common among teenagers • Often represents an avulsion fracture • With growth, a bony callus forms and the tuberosity enlarges

  13. Osgood-Schlatters • Treatment • Decrease stressful activities • Apply ice before and after activities • Strengthen quads and hamstrings • Severe cases: Use a cast

  14. Projections/Processes • Some projections form joints • Head • Bony expansion carried on narrow neck • Humeral/Femoral head • Facet • Smooth, flat articular surface • Spinal facet • Condyle • Rounded articular projection

  15. Notecards • Using notecards or a piece of paper divided into squares, create note cards of the 10 vocab words from class. • Each word goes on 1 card, and the definition goes on the other • Total of 20 cards • 10 for vocab words • 10 for their definitions • DO NOT write on both sides of your card • Your ticket out of class is showing Mr. Wyand your flash cards

  16. Notecards • Tuberosity • Crest • Trochanter • Spine • Line • Epicondyle • Avulsion Fracture • Head • Facet • Condyle

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