Question 1

The stem cells of osteoclasts are

Accepted Answer

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

Question 2

-What does structure "D" represent on the bone diagram?

Accepted Answer

A)   cancellous bone
B)   diaphysis
C)   epiphyseal lines
D)   articular cartilage
E)   epiphysisF) A) and E)
G) A) and C)

Question 3

One effect of aging on the skeletal system is

Accepted Answer

A)   decreased bone matrix.
B)   increased bone density.
C)   decreased collagen fibers.
D)   increased elastic fibers.
E)   Decreased bone matrix and decreased collagen fibers are effects of aging.F) D) and E)
G) C) and E)

Question 4

In which type of bone would osteons be present?

Accepted Answer

A)   spongy bone
B)   compact bone
C)   both spongy and compactD) A) and B)
E) A) and C)

Question 5

Intramembranous ossification

Accepted Answer

A)   forms the bones of the roof of the skull.
B)   is the process that produces most of the skeletal system.
C)   occurs when bones develop from cartilage models.
D)   occurs when osteoblasts invade the spaces left by dying cartilage cells.
E)   occurs on the outer surface of the membrane.F) C) and E)
G) A) and C)

Question 6

Which type of bone appears porous?

Accepted Answer

A)   spongy bone
B)   compact bone
C)   both spongy and compactD) A) and B)
E) All of the above

Question 7

The stem cells of osteoblasts and chondroblasts are

Accepted Answer

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

Question 8

Which of the following is NOT a function of bone?

Accepted Answer

A)   support
B)   movement
C)   immunity
D)   calcium storage
E)   blood cell formationF) A) and B)
G) A) and C)

Question 9

Chondroblasts produce

Accepted Answer

A)   ligaments.
B)   cartilage matrix.
C)   bone tissue.
D)   blood cells.
E)   synovial fluid.F) A) and E)
G) C) and D)

Question 10

In appositional growth of cartilage,

Accepted Answer

A)   chondroblasts within the tissue proliferate and add more matrix from the inside.
B)   new chondrocytes and new matrix are added on the outside of the tissue.
C)   osteoblasts replace the chondroblasts.
D)   the tissue becomes vascularized in order to grow.
E)   the cartilage is replaced with another kind of connective tissue.F) A) and E)
G) None of the above

Question 11

Which of the following membranes covers the surface of a mature bone?

Accepted Answer

A)   perimysium
B)   perichondrium
C)   peritendineum
D)   peritoneum
E)   periosteumF) A) and D)
G) C) and D)

Question 12

Which of the following events occurs last?

Accepted Answer

A)   Blood vessels grow into the primary ossification center.
B)   Cartilage is calcified in the cartilage model.
C)   A cartilage model is formed by chondroblasts.
D)   Osteoblasts produce trabeculae and lamellae on the surface of calcified cartilage.
E)   Secondary ossification centers appear in the epiphyses.F) A) and B)
G) B) and C)

Question 13

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

Accepted Answer

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

Question 14

What is the site of long bone growth?

Accepted Answer

A)   medullary cavity
B)   periosteum
C)   endosteum
D)   diaphysis
E)   epiphyseal plateF) A) and D)
G) A) and C)

Question 15

How does the urinary system contribute to osteoporosis?

Accepted Answer

A)   Lack of exposure to sunlight reduces vitamin D production and decreases calcium absorption.
B)   Immune cells resist infections and release chemicals that promote tissue repair.
C)   Excessive smoking lowers estrogen levels, which increases bone loss.
D)   Calcium ions released from the bones are excreted.
E)   Decreased estrogen levels following menopause contribute to the disease.F) B) and D)
G) A) and C)

Question 16

Which of the following statements about bone remodeling and repair is correct?

Accepted Answer

A)   Bone remodeling involves removal of old bone by osteoblasts.
B)   As a long bone increases in diameter, the size of the marrow cavity decreases.
C)   The rate of bone remodeling increases in the elderly.
D)   Exposure of a bone to increased mechanical stress can lead to bone remodeling.
E)   Bone remodeling does not involve the activity of the osteoclasts and the osteoblasts.F) B) and D)
G) A) and C)

Question 17

-What does structure "A" represent on the bone diagram?

Accepted Answer

A)   cancellous bone
B)   diaphysis
C)   epiphyseal lines
D)   articular cartilage
E)   epiphysisF) A) and B)
G) B) and C)

Question 18

Which type of bone is considered dense bone?

Accepted Answer

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

Question 19

How does the integumentary system contribute to osteoporosis?

Accepted Answer

A)   Lack of exposure to sunlight reduces vitamin D production and decreases calcium absorption.
B)   Immune cells resist infections and release chemicals that promote tissue repair.
C)   Excessive smoking lowers estrogen levels, which increases bone loss.
D)   Calcium ions released from the bones are excreted.
E)   Decreased estrogen levels following menopause contribute to the disease.F) B) and E)
G) None of the above

Question 20

The processes of intramembranous and endochondral ossification are similar in several respects. Which of the following statements applies to both intramembranous and endochondral ossification?

Accepted Answer

A)   Both processes form woven bone.
B)   Both processes require a precursor of connective tissue membranes.
C)   In both processes, bone replaces cartilage.
D)   Both only form flat bones.
E)   Chondrocytes participate in both processes.F) B) and C)
G) All of the above

Exam 6: Skeletal System: Bones and Bone Tissue

In which type of bone would osteons be present?

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-What does structure "D" represent on the bone diagram?

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Which of the following statements about bone remodeling and repair is correct?

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What is the site of long bone growth?

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Which of the following is NOT a function of bone?

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Chondroblasts produce

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In appositional growth of cartilage,

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Which of the following events occurs last?

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One effect of aging on the skeletal system is

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Which type of bone appears porous?

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The stem cells of osteoblasts and chondroblasts are

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How does the urinary system contribute to osteoporosis?

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Which type of bone is considered dense bone?

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

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The processes of intramembranous and endochondral ossification are similar in several respects. Which of the following statements applies to both intramembranous and endochondral ossification?

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The stem cells of osteoclasts are

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-What does structure "A" represent on the bone diagram?

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Which of the following membranes covers the surface of a mature bone?

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Intramembranous ossification

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How does the integumentary system contribute to osteoporosis?

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