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Skeletal System

Skeletal System. Skeletal System. The Basics. Skeletal System. The Basics provides support and shape to the body. Skeletal System. The Basics provides support and shape to the body protects delicate internal organs. Skeletal System. The Basics provides support and shape to the body

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Skeletal System

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  1. Skeletal System

  2. Skeletal System • The Basics

  3. Skeletal System • The Basics • provides support and shape to the body

  4. Skeletal System • The Basics • provides support and shape to the body • protects delicate internal organs

  5. Skeletal System • The Basics • provides support and shape to the body • protects delicate internal organs • acts as a system of levers on which muscles act to produce movement

  6. Skeletal System • The Basics • provides support and shape to the body • protects delicate internal organs • acts as a system of levers on which muscles act to produce movement • stores minerals

  7. Skeletal System • The Basics • provides support and shape to the body • protects delicate internal organs • acts as a system of levers on which muscles act to produce movement • stores minerals • site of blood cell formation

  8. Skeletal System • The Basics • provides support and shape to the body • protects delicate internal organs • acts as a system of levers on which muscles act to produce movement • stores minerals • site of blood cell formation

  9. The Structure of Bone

  10. The Structure of Bone • Periosteum - a tough membrane that covers the bone

  11. The Structure of Bone • Periosteum - a tough membrane that covers the bone • Compact bone - dense bone tissue similar to ivory

  12. The Structure of Bone • Periosteum - a tough membrane that covers the bone • Compact bone - dense bone tissue similar to ivory • Spongy bone - adds strength to bones without adding mass

  13. The Structure of Bone • Periosteum - a tough membrane that covers the bone • Compact bone - dense bone tissue similar to ivory • Spongy bone - adds strength to bones without adding mass • Marrow in center

  14. The Structure of Bone • Periosteum - a tough membrane that covers the bone • Compact bone - dense bone tissue similar to ivory • Spongy bone - adds strength to bones without adding mass • Marrow in center

  15. Anatomy of a Long Bone

  16. Anatomy of a Bone • Color and label the worksheet by referring to the slide prior to this one

  17. Healing Bones • Healing takes place in periosteum, with thin layer of blood vessels and nerves covering the bone • Area inflamed and cleans away dead tissue and new cells (osteoblasts) move in to make repair • Bone is stronger and callus is built up over damaged area

  18. How are bones formed?

  19. How are bones formed? • Bones are made of living tissue - osteocytes

  20. How are bones formed? • Bones are made of living tissue - osteocytes • Ossification - process of osteocytes adding calcium to cartilage

  21. How are bones formed? • Bones are made of living tissue - osteocytes • Ossification - process of osteocytes adding calcium to cartilage • Osteocytes can either add or remove calcium salts

  22. How are bones formed? • Bones are made of living tissue – osteocytes (bone cells) • Ossification - process of osteocytes adding calcium to cartilage • Osteocytes can either add or remove calcium salts • Lacuna: small pockets found b/w sheets of calcified matrix called lamellae

  23. Keeping Bone Tissue Healthy

  24. Keeping Bone Tissue Healthy • Haversian canals are tubes through bone tissue.

  25. Keeping Bone Tissue Healthy • Haversian canals are tubes through bone tissue. • Blood vessels and nervous tissue are found in the Haversian canals

  26. Keeping Bone Tissue Healthy • Haversian canals are tubes through bone tissue. • Blood vessels and nervous tissue are found in the Haversian canals • Osteocytes are nourished by these blood vessels

  27. Keeping Bone Tissue Healthy • Haversian canals (osteons) are tubes through bone tissue. • Blood vessels and nervous tissue are found in the Haversian canals • Osteocytes are nourished by these blood vessels • Canaliculi: small channels radiate through matrix interconnecting lacunae (small pockets that have bone cells) and linking them to blood vessels

  28. How bones grow!

  29. How bones grow! • Long bones (like those of arms & legs) - have growth plates at either end

  30. How bones grow! • Long bones (like those of arms & legs) - have growth plates at either end • The cartilage in the growth plates cause bones to lengthen

  31. How bones grow! • Long bones (like those of arms & legs) - have growth plates at either end • The cartilage in the growth plates cause bones to lengthen • Cartilage is then ossified becoming bone

  32. How bones grow! • Long bones (like those of arms & legs) - have growth plates at either end • The cartilage in the growth plates cause bones to lengthen • Cartilage is then ossified becoming bone

  33. How bones grow! • Long bones (like those of arms & legs) - have growth plates at either end • The cartilage in the growth plates cause bones to lengthen • Cartilage is then ossified becoming bone

  34. Bone Classification p.136 • Long bones • Short bones • Flat bones • Irregular bones • *color at least 2 of each on your worksheet!

  35. Connecting Bones Together

  36. Connecting Bones Together • While bone is strong structurally it is a soft material that wears easily

  37. Connecting Bones Together • While bone is strong structurally it is a soft material that wears easily • Cartilage at ends of bone prevent bone on bone wear

  38. Connecting Bones Together • While bone is strong structurally it is a soft material that wears easily • Cartilage at ends of bone prevent bone on bone wear • Ligaments hold bones together

  39. Connecting Bones Together • While bone is strong structurally it is a soft material that wears easily • Cartilage at ends of bone prevent bone on bone wear • Ligaments hold bones together

  40. Joint Movement

  41. Stick Figure • Fill out matching on joint movements worksheet • Make stick figure perform movements

  42. Different types of joints.

  43. Different types of joints. • Fixed joints - found in skull do not allow movement . These are also called suture joints because of their jagged appearance

  44. Different types of joints. • Fixed joints - found in skull do not allow movement . These are also called suture joints because of their jagged appearance

  45. Different types of joints. • Hinged joints - like those found in the knee provide movement similar to a door hinge

  46. Different types of joints. • Hinged joints - like those found in the knee provide movement similar to a door hinge

  47. Different types of joints. • Hinged joints - like those found in the knee provide movement similar to a door hinge • Allow for flexion and extension • Ex: humeroulnar (elbow)

  48. Hinge Joint Examples • Knee • Ankle • Interphalangeal

  49. Different types of joints. • Ball and socket joints - like those found in the shoulder and hips allow for movement in all directions

  50. Different types of joints. • Ball and socket joints - like those found in the shoulder and hips allow for movement in all directions

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