Haversian systems or osteons
A. lack concentric lamellae.
B. do not contain osteocytes.
C. are found in spongy bone tissue.
D. are avascular.
E. are the basic units in compact bone tissue.
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Question 2) The type of lamellae found in osteons (Haversian systems) is
A. circumferential.
B. interstitial.
C. appositional.
D. concentric.
E. oppositional.
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Question 3) Spongy bone tissue
A. contains interconnecting plates called trabeculae.
B. is very dense.
C. contains concentric lamellae.
D. is the primary component of compact bone.
E. has many spaces and lacks osteocytes.
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Question 4) Woven bone
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.
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Question 5) Lamellar bone
A. is very light in weight.
B. has a porous appearance.
C. has its collagen fibers randomly oriented.
D. is organized into thin sheets of tissue.
E. is not easily restructured.
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Question 6) The stem cells of osteoblasts and chondroblasts are
A. monocytes.
B. chondrocytes.
C. osteocytes.
D. osteoclasts.
E. osteochondral progenitor cells.
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Question 7) Osteoclasts have projections that cause bone reabsorption called
A. ruffled borders.
B. canaliculi.
C. lacunae.
D. crossroads.
E. lamellae.
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Question 8) Which of the following is associated with osteoclast reabsorption of bone?
A. Osteoblasts form collagen and proteoglycans.
B. Blood calcium is decreased.
C. Ca2+ is actively transported from blood to bone matrix.
D. Hydrogen ions form an acid environment in bone matrix.
E. The protein components of bone matrix are synthesized.
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Question 9) The stem cells of osteoclasts are
A. osteocytes.
B. chondrocytes.
C. monocytes.
D. osteochondral progenitor cells.
E. osteoclasts.
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Question 10) Which type of bone cells have processes that lie in canaliculi?
A. osteocytes
B. osteoblasts
C. osteoclasts
D. osteochondral progenitor cell
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