Long Bone Structure Flashcards

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1
Q

Describe the diaphysis

A

The middle section / shaft of the bone

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2
Q

Describe the epiphysis

A

The end points where joints form

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3
Q

Describe the growth plate / epiphyseal plate

A
  • situated between the diaphysis and epiphysis
  • fused and inactive in adults
  • where bone growth takes place in children and teenagers
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4
Q

Describe compact bone

A
  • forms the diaphysis

- dense and very strong

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5
Q

Describe cancellous bone

A
  • makes up the epiphysis
  • honeycomb structure
  • light but still strong
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6
Q

Describe the periosteum

A
  • forms a thin protective fibrous sheath around the bone but not over the ends
  • rich supply of blood vessels which bring nutrients to the bone and transfer waste away
  • also an attachment point for muscles and tendons
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7
Q

Describe the job of the capillaries

A

To supply blood to the bone and all over the body

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8
Q

Describe the bone cavity / medullary cavity

A
  • runs down the middle of the shaft

- contains bone marrow where red and white blood cells are produced

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9
Q

What are the eight main structures of a human long bone?

A
  • diaphysis
  • epiphysis
  • growth plate / epiphyseal plate
  • compact bone
  • cancellous bone
  • periosteum
  • capillaries
  • bone cavity / medullary cavity
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