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Sponge: Set up Cornell Notes on Topic: 7.3 Vertebral Column Essential Question :

7.3 Vertebral Column. 2.1 Atoms, Ions, and Molecules. Sponge: Set up Cornell Notes on Topic: 7.3 Vertebral Column Essential Question : On pg. 60 make a picture bubble map of the spine describing what each type of vertebra.

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Sponge: Set up Cornell Notes on Topic: 7.3 Vertebral Column Essential Question :

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  1. 7.3 Vertebral Column 2.1 Atoms, Ions, and Molecules Sponge: Set up Cornell Notes on Topic: 7.3 Vertebral Column Essential Question: • On pg. 60 make a picture bubble map of the spine describing what each type of vertebra. • On pg. 60 make a picture bubble map of the spine describing each type of vertebra.

  2. Vertebral Column • Extends from the skull to the pelvis • 26 bones • Composed of many bony parts called vertebrae • Separated by masses of fibrocartilage connected to one another by ligaments (discs) Function: • Supports the weight of the head and trunk of the body • Protects the spinal cord • Flexible • Permits movement • Bending forward, backward, side, rotation

  3. Figure 07.32

  4. Compare parts of the vertebral column to others. What do you notice about its shape?

  5. Primary curves: The thoracic curvature and the sacral curvatureconcave anteriorly concave Thoracic Curvature Sacral Curvature concave

  6. *Forms when a baby begins to hold its head up Cervical Curvature Secondary Curves: The Cervical curvature in the neck and the lumbar curvatures in the lower back convex anteriorly *Forms when a child begins to stand Lumbar Curvature

  7. Vertebra: • Drum-shaped body • Row of these support the weight of the head and trunk • Intervertebral Discs cushion and soften the forces caused by walking and jumping • Otherwise might fracture vertebrae or jar the brain

  8. Vertebrae Intervertebral Disc Vertebra (One)

  9. Spinal cord passes through the vertebral arch

  10. Cervical Vertebrae • Make up bones in the neck • Smallest of the vertebrae • Have passageways for arteries leading to the brain • Atlas –supports head • Axis –dens pivots to turn head

  11. Thoracic Vertebrae • Slope downward • Facets on the sides of its body connect to ribs

  12. Lumbar Vertebrae • Support more weight than other vertebrae • Larger • Stronger • large bodies • thick, short spinous processes

  13. Sacrum • Sacrum: triangular structure at the base of the vertebral column • Fuses between 18-30 yrs of age • Nerves and blood vessels pass through openings • Connected to pelvis • The pelvic girdle transmits body’s weight to the legs

  14. Coccyx • Tailbone • lowest part of vertebral column • Acts as a shock absorber

  15. Cervical vertebra Pg. 60: Draw and label the Vertebral Column (with curves labeled). For each type of vertebra, please explain its job/function Thoracic vertebra Lumbar vertebra

  16. Thoracic Curvature Thoracic vertebrae Primary Curves X Sacrum Sacral Curvature Vertebral Column X Coccyx Cervical Curvature Cervical vertebrae Secondary Curves Lumbar vertebrae Lumbar Curvature

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