Question 1

The spaces between developing skull bones that have not ossified are called

Accepted Answer

A)  epiphyseal plates.
B)  bone collars.
C)  articular cartilages.
D)  fontanels.
E)  medullary cavities.F) A) and C)
G) A) and E)

Question 2

True or false: Bone remodeling stops during puberty.

Accepted Answer

A) True 
 B)False

Question 3

The stem cells of osteoblasts and chondroblasts are

Accepted Answer

A)  monocytes.
B)  chondrocytes.
C)  osteocytes.
D)  osteoclasts.
E)  osteochondral progenitor cells.F) B) and E)
G) A) and D)

Question 4

Sally has elevated levels of blood calcium.What chemical would you expect to find in high levels in response to this condition?

Accepted Answer

A)  sex hormones
B)  parathyroid hormone
C)  growth hormone
D)  calcitonin
E)  vitamin DF) A) and E)
G) A) and B)

Question 5

The compression (weight-bearing) strength of bone matrix is due to the presence of

Accepted Answer

A)  hydroxyapatite crystals.
B)  collagenase.
C)  collagen fibers.
D)  elastin fibers.
E)  bone marrow.F) B) and C)
G) B) and E)

Question 6

In which type of bone are osteoblasts and osteoclasts present?

Accepted Answer

A)  spongy bone
B)  compact bone
C)  both spongy and compactD) B) and C)
E) None of the above

Question 7

Which of the following is correctly matched?

Accepted Answer

A)  short bone - carpal bone
B)  long bone - vertebra
C)  short bone - humerus
D)  flat bone - phalanges of the toes
E)  irregular bone - femurF) All of the above
G) B) and D)

Question 8

Which type of bone cells give rise to osteoblasts?

Accepted Answer

A)  osteochondral progenitor cell
B)  osteoblasts
C)  osteoclasts
D)  osteocytesE) C) and D)
F) All of the above

Question 9

Which of the following statements about bone growth is TRUE?

Accepted Answer

A)  Most growth in long bones results from interstitial growth.
B)  In the epiphyseal plate,osteoblasts degenerate to form chondrocytes.
C)  Endochondral growth in long bones occurs at the epiphyseal plate.
D)  Bones can not grow by appositional growth.
E)  Appositional bone growth results in increased bone length.F) A) and C)
G) A) and B)

Question 10

Osteoporosis is

Accepted Answer

A)  bone inflammation that often results from bacterial infection.
B)  a disease in adults characterized by softening of bones resulting from calcium depletion.
C)  a group of genetic disorders producing very brittle bones that are easily fractured; occurs because of insufficient collagen development.
D)  a disease in adults,especially women,characterized by a reduced amount of bone matrix.
E)  a disease in children characterized by soft,bowed,and swollen bones.F) B) and E)
G) C) and D)

Question 11

Appositional growth deposits a new layer of bone

Accepted Answer

A)  in the epiphyseal plate of long bones.
B)  in the secondary ossification center of the epiphyses.
C)  on the surface of the bone.
D)  on cancellous,but not compact bone.
E)  in interstitial areas.F) D) and E)
G) A) and E)

Question 12

Calcitonin

Accepted Answer

A)  decreases osteoblast activity.
B)  is associated with decreased osteoclast activity.
C)  decreases osteochondral progenitor cell activity.
D)  decreases osteocyte activity.
E)  has no effect on bone cells.F) None of the above
G) C) and D)

Question 13

The type of lamellae found between osteons (Haversian systems) is

Accepted Answer

A)  interstitial.
B)  oppositional.
C)  appositional.
D)  circumferential.
E)  concentric.F) C) and D)
G) B) and E)

Question 14

The sequence of events that produces growth at the epiphyseal plate is

Accepted Answer

A)  hypertrophy,proliferation,calcification,ossification,and remodeling.
B)  hypertrophy,calcification,proliferation,cell death,ossification,and remodeling.
C)  proliferation,hypertrophy,calcification,cell death,ossification,and remodeling.
D)  calcification,hypertrophy,proliferation,ossification,cell death,and remodeling.
E)  proliferation,hypertrophy,cell death,calcification,ossification,and remodeling.F) A) and B)
G) A) and C)

Question 15

The zygomatic bone is an example of a(n)

Accepted Answer

A)  long bone.
B)  flat bone.
C)  short bone.
D)  irregular bone.E) A) and B)
F) A) and C)

Question 16

Woven bone

Accepted Answer

A)  has a porous appearance.
B)  is not easily restructured.
C)  has its collagen fibers randomly oriented.
D)  is organized into thin sheets of tissue.
E)  is very light in weight.F) A) and E)
G) A) and D)

Question 17

The connective tissue sheath of cartilage is called the

Accepted Answer

A)  ligamentous cord.
B)  lacuna.
C)  chondrocyte.
D)  matrix.
E)  perichondrium.F) A) and B)
G) All of the above

Question 18

Which of the following cell types is responsible for breaking down bone matrix?

Accepted Answer

A)  osteoclast
B)  fibroblast
C)  osteocyte
D)  chondroclast
E)  chondroblastF) A) and B)
G) None of the above

Question 19

These are blood vessels that carry blood from the medullary cavity and periosteum to the osteon and run perpendicular to the long axis of the bone.

Accepted Answer

A)  Haversian canals
B)  lamellar canals
C)  Volkmann canals
D)  osteochondral canals
E)  Sharpey's canalsF) B) and D)
G) B) and E)

Question 20

A bone fracture generally found in children that is incomplete is a(an)

Accepted Answer

A)  complicated fracture.
B)  greenstick fracture.
C)  dentate fracture.
D)  hairline fracture.
E)  spiral fracture.F) A) and C)
G) A) and D)

Exam 6: Skeletal System: Bones and Bone Tissue

Which of the following cell types is responsible for breaking down bone matrix?

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Which of the following is correctly matched?

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The connective tissue sheath of cartilage is called the

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A bone fracture generally found in children that is incomplete is a(an)

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Sally has elevated levels of blood calcium.What chemical would you expect to find in high levels in response to this condition?

Correct AnswerverifiedShow Answer

The spaces between developing skull bones that have not ossified are called

Correct AnswerverifiedShow Answer

Which type of bone cells give rise to osteoblasts?

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These are blood vessels that carry blood from the medullary cavity and periosteum to the osteon and run perpendicular to the long axis of the bone.

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The sequence of events that produces growth at the epiphyseal plate is

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Which of the following statements about bone growth is TRUE?

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Osteoporosis is

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The zygomatic bone is an example of a(n)

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Calcitonin

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The type of lamellae found between osteons (Haversian systems) is

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Appositional growth deposits a new layer of bone

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In which type of bone are osteoblasts and osteoclasts present?

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Woven bone

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True or false: Bone remodeling stops during puberty.

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The stem cells of osteoblasts and chondroblasts are

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The compression (weight-bearing) strength of bone matrix is due to the presence of

Correct AnswerverifiedShow Answer

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