CHARACTERISTICS AND PROPERTIES OF BONE Flashcards

1
Q

What are the five functional roles of the skeletal system?

A
  1. Support of body
  2. Protection of internal organs
  3. Levers for skeletal muscles to act
  4. Production of blood cells through bone marrow
  5. Storage of minerals
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2
Q

What kind of material is bone?

A

Composite material

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3
Q

What is composite material?

A

Two or more materials come together to form something

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4
Q

What two materials is bone made up of?

A

70% calcium phosphate crystals (inorganic) and 30% collage fibers (organic)

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5
Q

What are the two characteristics of calcium phosphate crystals (inorganic)?

A
  1. Very strong but inflexible
  2. Ability to resist compressive stress
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6
Q

What are the two characteristics of collagen fibers (organic)?

A
  1. Tough and flexible
  2. Ability to resist stretching, bending and twisting stresses
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7
Q

What can bone do under the influence of external forces?

A

Since bone is responsive material, bone remodels (changes shape overtime)

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8
Q

What does it mean when bone is anisotropic?

A

Properties will vary depending on orientation of material; different strength and hardness properties depending on its orientation

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