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Understanding the Skeletal System: Functions, Structure, and Importance

Explore the skeletal system and its crucial functions in providing support, allowing movement, and protecting delicate organs. Learn about bone structure, types of bones, bone tissues, joints, and how ligaments hold bones together.

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Understanding the Skeletal System: Functions, Structure, and Importance

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  1. Skeletal System-Functions • Provides shape and support • Allows movement (provides a surface to which muscles attach) • Protect delicate tissues and organs • Storage of minerals (calcium and phosphorus) • Produces blood cells

  2. Bone Structure • compact bone: hard and dense for strength • Composed primarily of minerals • spongy bone: spaces for lower weight • Marrow: forms blood cells • veins and arteries: to bring nutrients to the cells • nerves: to collect information from the tissue and to send information to the brain

  3. Parts of Bone spongy bone bone marrow compact bone artery vein

  4. Parts of Bone: Cross Section bone making cells veins, arteries, nerves compact bone spongy bone bone marrow

  5. compact bone tissue tubes where blood vessels and nerves go through nuclei of bone cells

  6. compact bone spongy bone

  7. Bone Tissues

  8. Bone Tissues spongy

  9. Bone Tissues compact

  10. Bone Tissues marrow

  11. JOINTS Joints: any place where two bones come close together • Immovable (skull) • Movable (hinge, ball & socket, pivot, gliding) What holds the bones together at the joints? ligaments

  12. Type of Joint? ball and socket shoulder/upper arm

  13. Type of Joint? ball and socket

  14. Type of Joint? gliding

  15. Type of Joint? gliding

  16. Type of Joint? immovable

  17. Type of Joint? pivot

  18. Type of Joint? pivot

  19. Type of Joint? hinge

  20. Type of Joint? hinge

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