Bone is connective tissue, in which the intercellular matrix has been impregnated with inorganic calcium salts, that has great tensile and compressible strength but is light enough to be moved by coordinate muscle contractions
One third of the dry weight of bone is composed of which of the following?
A)
Bone cells, inorganic salts, and blood vessels
B)
Hydroxyapatite, calcium carbonate, and calcium fluoride
C)
Bone cells, blood vessels, and nerves
D)
Organic matter and inorganic salts
Ans:
C
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The intercellular matrix is composed of two types of substances: organic matter and inorganic salts. The organic matter (bone cells, blood vessels, and nerves) constitutes approximately one third of the dry weight of bone; the inorganic salts (including hydroxyapatite, calcium carbonate, and calcium fluoride) make up the other two thirds.
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