skeletal system
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Skeletal System. Fill in the skeletal body on the back page of your packet. Use pages 134 in your text book. Terminology 126. 1. aur-7. arthr(o)- 2. –poiesis8. carp- 3. brachi-9. cervic 4. oss-10. dia- 5. burso11. cox(a), pelv 6. –genesis12. dactyl, digit - PowerPoint PPT PresentationTRANSCRIPT
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Skeletal System
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Fill in the skeletal body on the back page of your packet. Use pages 134 in your text book.
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Terminology 1261. aur-7. arthr(o)-2. poiesis8. carp-3. brachi-9. cervic4. oss-10. dia-5. burso11. cox(a), pelv6. genesis12. dactyl, digit13. ax-14. fov-15. front-16. scolio17. corac-18. condyl-
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IntroductionHow many bones do you think are in the human body?206Largest Bone?FemurSmallest Bone?Ossicles (ear bones)
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Functions (5)1.Support Body
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2. Protect organs
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3. Attachment of muscles
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4. HemopoiesesThe bones make blood cells from embryonic month 5 on
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5. Mineral StorageCa2(PO4)3
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AnatomyThere are basically four types of bones.
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1. Long Bonese.g.FemurRadiusulnahumerus
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2. Short bonescarpals
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3. Flat Bones
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4. Irregular Bones
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Parts of a long bonePlease color code the femur. Color code letters a-g.
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EpiphysisA. Ends of the bone (Proximal and distal)
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Epiphyseal plateA1: Cartilage growth plates on bone ends.(Growth plate)
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(hyaline) cartilage on end of bone b bone trabeculae of spongy bone c red marrow cavity d epiphyseal plate (hyaline cartilage)
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a Epiphyseal plate made of hyaline cartilage is responsible for long bone growth. Note: The direction of growth is toward the diaphysis (shaft of long bone). Also Note: The newly forming spongy bone (below the growth plate) is not clearly organized as the older spongy bone in the epiphysis above the growth plate.
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DiaphysisB. Shaft of the bone, middle part.
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Articular CartilageC. Cartilage layer to reduce pain and friction.
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PeriosteumD. Living layer surrounding bone. Nourishing and growth in width.
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Spongy boneLooks like a sponge.Mostly in the epiphysisContains red marrow (Makes RBCs)
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Compact BoneClose together in diaphysis.Organized into concentric layers.
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Medullary CavityHole in the middle of the bone.Filled with yellow marrow (fat for energy storage)
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Surface features: (3)1. Projections2. Depressions3. Openings
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ProjectionsFor attachments
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DepressionsFor joints to fit together.
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OpeningsFor blood vessels and nerves.
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Osseous Tissue
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Matrix
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OsteocyteMature bone cells. Maintain bones and assist and repair.