When blood vessels become surrounded by concentric lamella forming osteons, the bone will grow in
A. length.
B. diameter.
C. the epiphyseal plate.
D. the articular cartilage.
E. all of these areas.
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Question 2) Normal bone growth requires adequate amounts of _____, _____, and _____ in the diet.
A. potassium, calcium, and vitamin D
B. vitamin D, phosphate, and chloride
C. calcium, phosphate, and vitamin D
D. vitamin E, vitamin B, and vitamin A
E. sodium, calcium, and vitamin E
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Question 3) If an X-ray shows a black area in the region of the epiphyseal plate,
A. the bone is fractured.
B. the epiphyseal plate has not completely ossified.
C. growth of the bone is complete.
D. the cartilage is absent.
E. marrow is forming in the cancellous bone.
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Question 4) Bone growth of the epiphysis occurs at the
A. diaphysis.
B. joint cavity.
C. epiphyseal plate.
D. perichondrium.
E. articular cartilage.
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Question 5) Long bones grow in length at the
A. endosteum-periosteum junction.
B. articular cartilage.
C. center of the shaft.
D. center of the epiphysis.
E. epiphyseal plate.
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Question 6) The longitudinal growth of long bones ceases when
A. chondroblasts take over mitosis of osteoblasts.
B. the epiphyseal plate is completely replaced with bone tissue.
C. the periosteum is completed.
D. the epiphysis becomes separated from the diaphysis.
E. the bone marrow forms.
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Question 7) Osteoblasts involved in bone growth in length come primarily from
A. chondrocytes.
B. connective tissue surrounding blood vessels from the endosteum.
C. osteocytes.
D. periosteum.
E. endothelium of blood vessels.
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Question 8) Which of the following statements about bone growth is TRUE?
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.
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Question 9) The sequence of events that produces growth at the epiphyseal plate is
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.
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Question 10) Appositional growth deposits a new layer of bone
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.
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