QuestionSBA
QuestionChoice
This answer is incorrect. Cancellous bone is turned over 3-10 times quicker than cortical bone as it has a larger surface area and responds to stresses on the bone more rapidly.
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e
It has a lower rate of turnover than cortical bone
QuestionChoice
This answer is incorrect. Cortical bone makes up around 80% of the total bone mass in an adult due to its high density.
10007352
b
It makes up around 80% of the total bone mass in an adult
QuestionChoice
This answer is incorrect. Cortical bone is arranged in osteons which are circular columns with a blood vessel running down the central Haversian canal.
10007353
c
It is arranged in osteons
QuestionChoice
This answer is correct. The surface area of cancellous bone is ten-times higher than the surface area of cortical bone.
10007351
a
It has a higher surface area than compact bone
QuestionChoice
This answer is incorrect. Random collagen organisation is a feature of woven bone which is found in children, healing bone or pathological bone.
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d
It has random collagen organisation
Concept
Chapter
2693
4588
Bone composition
Topic
228
Musculoskeletal Physiology
14017
A 55-year-old woman is diagnosed with osteoporosis after experiencing multiple fragility fractures. She asks her GP about the different types of bone.

Which of the following is true of cancellous bone?
a