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Classification and Structure of Bones - PowerPoint PPT Presentation


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Classification and Structure of Bones. Goals for Today. Learn about skeletal support system Learn about the 4 bone groups Learn about bone structure Learn about bone markings and their functions. Pg. 78. Support System. Cartilage - gel-like matrix with fibers (EX:collagen)

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Presentation Transcript
slide2

Goals for Today

Learn about skeletal support system

Learn about the 4 bone groups

Learn about bone structure

Learn about bone markings and their functions

slide4

Pg. 78

Support System

Cartilage

- gel-like matrix with

fibers (EX:collagen)

- chondrocyte (Cartilage) cells

Bone

- matrix filled with

calcium salts

- rigid = calcium salts

- flexible = collagen matrix

- osteocyte cells

slide5

Activity 3 – Heat and HCl on Bones

Heat – dries the organic matrix of the bone

What will happen?

Vinegar – removes calcium salts from bone

What will happen?

slide6

Hyaline

- sturdy support w/

some “give”

- EX: nose, trachea, ribs

  • Elastic
  • flexible
  • lots of elastin fibers
  • - EX: epiglottis, ear
  • Fibrocartilage
  • resists compression
  • EX: intervertebral disks

Be able to give examples

slide8

The 4 Bone Groups

Long Bones – longer than wide.

EX: femur, humerus

Short Bones – cube-shaped.

EX: tarsals, carpals

Flat Bones – thin and flattened. EX: skull, ribs

Irregular Bones – “other bones” EX: vertebrae

slide10

Pg. 75

Pg. 75

slide12

Central Canal

w/ blood vessels,

nerves

Osteon

Lacunae w/

bone cells

slide15

Bone Markings

Vessel Passage

Muscle

Attachment

Joints

slide17

Head

Condyle

slide18

Spine

Foramen

slide19

To Do List

  • Learn to categorize bones into the 4 groups
  • Examine femur cross-section. Identify the parts
  • Look at bone slide. Identify parts
  • Learn bone marking vocabulary. Identify each
    • marking on an actual bone
    • 5. Look at vinegar and heat-treated bones.