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Which of the following statements about Marfan's syndrome is False ?


A) results in short, stubby fingers
B) results from a mutation
C) affects connective tissue genes
D) affects epiphyseal cartilages
E) none of the above

F) A) and E)
G) A) and B)

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In compact bone, the osteons


A) are lined up in the same direction.
B) are lined up perpendicular to the long axis.
C) are arranged in an irregular pattern.
D) are separated by medullary spaces.
E) are lacking in the diaphysis.

F) None of the above
G) A) and D)

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Stem cells that can differentiate into osteoblasts are called ________ cells.

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Bone is composed of ________ percent cells.


A) 25
B) 10
C) 2
D) 15
E) 50

F) B) and C)
G) B) and E)

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The carpal bones are examples of ________ bones.


A) long
B) short
C) flat
D) irregular
E) sesamoid

F) B) and C)
G) A) and D)

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Which of following is a function of the skeletal system?


A) body support
B) calcium homeostasis
C) protection of internal organs
D) blood cell production
E) all of the above

F) A) and B)
G) All of the above

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A deep hollow on a bone is termed a


A) fossa.
B) sulcus.
C) facet.
D) fissure.
E) line.

F) A) and E)
G) A) and B)

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A(n) ________ fracture does not break the skin.

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Cells that are found in small depressions on the endosteal surfaces are the ________.

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Bone plays a central role in the regulation of blood levels of


A) potassium.
B) iron.
C) sulfate.
D) calcium.
E) sodium.

F) C) and E)
G) A) and B)

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The lacunae of osseous tissue contain


A) blood cells.
B) osteocytes.
C) chondroblasts.
D) bone marrow.
E) capillaries.

F) A) and B)
G) All of the above

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   Figure 6-2 Endochondral Ossification Use Figure 6-2 to answer the following question(s) : -What process is shown at  6 ? A)  primary ossification B)  secondary ossification C)  length growth D)  width growth E)  fracture repair Figure 6-2 Endochondral Ossification Use Figure 6-2 to answer the following question(s) : -What process is shown at "6"?


A) primary ossification
B) secondary ossification
C) length growth
D) width growth
E) fracture repair

F) A) and C)
G) C) and E)

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Excessive growth hormone prior to puberty could result in


A) osteoporosis.
B) osteopenia.
C) rickets.
D) giantism.
E) dwarfism.

F) A) and B)
G) None of the above

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________ is the organic component of the matrix in developing or repairing bone.

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________ accounts for almost two-thirds of the weight of bone.


A) Water
B) Calcium carbonate
C) Collagen fibers
D) Fluoride
E) Calcium phosphate

F) A) and D)
G) A) and E)

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A boot-top fracture that involves both lower leg bones is called a(n) ________ fracture.

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Which of the following is not present in bone?


A) calcium phosphate
B) collagen fibers
C) calcium carbonate
D) chondroitin sulfate
E) hydroxyapatite

F) B) and E)
G) A) and C)

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________ fibers are stronger than steel when stretched.

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How would removing hydroxyapatite from bone matrix affect the physical properties of a bone?


A) The bone would be less flexible.
B) The bone would be stronger.
C) The bone would be more brittle.
D) The bone would be more flexible.
E) The bone would be less compressible.

F) B) and D)
G) All of the above

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The smooth, rounded articular process of a bone is termed a


A) crest.
B) ridge.
C) head.
D) condyle.
E) trochlea.

F) A) and D)
G) C) and D)

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