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When production of sex hormones increases at puberty, epiphyseal plates


A) are hardly affected.
B) increase slowly.
C) become narrower.
D) accelerate rapidly, but mostly in thickness.
E) get wider.

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The lacunae of osseous tissue contain


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

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A rib is an example of a _____ bone.


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

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________marrow is found between the trabeculae of spongy bone.


A) Blue
B) Red
C) Yellow
D) White
E) Gray

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The interconnecting tiny arches of bone tissue found in spongy bone are called


A) lacunae.
B) trabeculae.
C) osteons.
D) interstitial lamellae.
E) concentric lamellae.

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A chamber within a bone normally filled with air is a _______

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Todd is 13 and lives in an urban apartment. He spends most of his time watching TV and eating "junk" food. One afternoon, during recess, he falls on the playground and breaks his leg. Although he appears to be healthy, his leg takes longer to heal than expected. What might be the cause of the longer healing time?

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Assuming that there is no other disease ...

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Secondary ossification centers occur


A) in the diaphysis.
B) in the epiphyses.
C) at the periosteum.
D) in the metaphyses.
E) in dermal bones.

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The expanded articular end of an epiphysis that is separated from the shaft by a narrower neck is termed an) ______ .

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The shaft of long bones is called the__________

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When the epiphyseal plate is replaced by bone,


A) long bones have reached their adult length.
B) interstitial bone growth begins.
C) the bone becomes more brittle.
D) puberty begins.
E) appositional bone growth begins.

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  Figure 6- 1 Bone Tissue Use Figure 6- 1 to answer the following questions) : -Which structure is termed an osteon? A)  1 B)  2 C)  3 D)  4 E)  5 Figure 6- 1 Bone Tissue Use Figure 6- 1 to answer the following questions) : -Which structure is termed an osteon?


A) 1
B) 2
C) 3
D) 4
E) 5

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The narrow passageways that contain cytoplasmic extensions of osteocytes are called


A) medullary cavities.
B) central canals.
C) canaliculi.
D) foramina.
E) lacunae.

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When cartilage is produced at the epiphyseal side of the metaphysis at the same rate as bone is deposited on the opposite side, bones


A) become more porous and weaker.
B) grow wider.
C) grow longer.
D) become shorter.
E) become thicker.

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An elderly patient has a broken femur that is healing very slowly. A young resident suggests using a device that will create an electrical field in the area of the fracture to help speed the healing process. Why might this possibly help?

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Osteoblasts are attracted to electrical ...

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An)___________- is a rounded passageway for passage of blood vessels and/or nerves.

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A child with rickets often has


A) bowed legs.
B) oversized facial bones.
C) inadequate muscle development.
D) long fingers.
E) frequent bruises.

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  Figure 6- 2 Endochondral Ossification Use Figure 6- 2 to answer the following questions) : -Cells that secrete the organic components of the bone matrix are called A)  chondrocytes. B)  osteoclasts. C)  osteoblasts. D)  osteocytes. E)  osteoprogenitor cells. Figure 6- 2 Endochondral Ossification Use Figure 6- 2 to answer the following questions) : -Cells that secrete the organic components of the bone matrix are called


A) chondrocytes.
B) osteoclasts.
C) osteoblasts.
D) osteocytes.
E) osteoprogenitor cells.

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


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

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Bones that develop within tendons are called _____ bones.


A) irregular
B) tendon
C) sesamoid
D) sutural
E) Wormian

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