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As bones age,their percentage of inorganic material decreases,leading to increased flexibility.

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What gives bone its flexibility?


A) Inorganic salts
B) Yellow bone marrow
C) Collagen fibers
D) Trabeculae
E) Elastic fibers

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Which structure does not contain cartilage?


A) Larynx
B) Lung
C) Stomach
D) Knee
E) Ear

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Each of the depressions on the maxillae and mandible that holds a tooth is called a(n)


A) fossa.
B) sulcus.
C) sinus.
D) alveolus.
E) foramen.

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Movement of the teeth during orthodontic treatment is a result of bone remodeling.

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Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone.

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Blood vessels enter the diaphysis of a long bone through an opening called the _________ foramen.

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Consider the classifications of bone,and examples of each.Which classification comprises bones used primarily for movement rather than protection?


A) Short bones
B) Long bones
C) Flat bones
D) Irregular bones
E) Regular bones

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When during human development does the process of ossification begin?


A) 12 weeks after birth
B) 12th-13th week of embryonic development
C) 8th-9th month of fetal development
D) 3-4 months of age
E) 10-25 years of age

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Which bone does not function in protection?


A) Parietal bone
B) Fibula
C) Lumbar vertebra
D) Sternum
E) Os coxae

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During bone formation,calcium phosphate and calcium hydroxide interact to form crystals of _________,which serve to harden the matrix.

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Spongy bone


A) contains no osteocytes.
B) has spaces filled with yellow marrow.
C) is composed of tubular units called osteons.
D) forms diploe in the cranial bones.
E) All of the choices are correct.

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The steps in the process of endochondral ossification are A: Ossification center forms in the diaphysis B: Cartilage calcifies and a bone collar forms C: Ossification centers form in the epiphyses D: Bone replaces cartilage E: Epiphyseal plates ossify F: Cartilage model develops The correct chronological order for these steps is


A) f - b - c - d - a - e
B) b - c - f - a - e - d
C) a - c - b - d - e - f
D) f - b - a - c - d - e
E) a - e - c - d - b - f

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A metatarsal bone is an example of a(n) _____ bone.


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

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Osteoblasts are bone-forming cells;osteoclasts are bone-dissolving cells.

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Which bone forms by intramembranous ossification?


A) Zygomatic
B) Radius
C) Axis
D) Hamate
E) First metatarsal

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-This figure illustrates the cell types found in bone.Which type of cell secretes osteoid? A) 1 B) 2 C) 3 D) 4 E) None of the choices is correct. -This figure illustrates the cell types found in bone.Which type of cell secretes osteoid?


A) 1
B) 2
C) 3
D) 4
E) None of the choices is correct.

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If a bone is immersed in a weak acid such as vinegar for several days,its inorganic components will dissolve.What will be the result of such an experiment?


A) The bone will dissolve completely.
B) The compact bone will dissolve,leaving only the inner spongy bone.
C) The bone will become hard and brittle.
D) The bone will become soft and flexible.
E) The spongy bone will dissolve,leaving only the outer compact bone.

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-This figure shows the gross anatomy of a long bone.Which number indicates the periosteum? A) 1 B) 2 C) 3 D) 4 E) 5 -This figure shows the gross anatomy of a long bone.Which number indicates the periosteum?


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

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Which is not involved in the process of bone repair following a fracture?


A) Fibroblasts produce collagen fibers to connect broken pieces of bone.
B) A fibrocartilaginous callus serves as a model for new bone growth.
C) Osteoclasts remove excess bone from the hard callus.
D) The fracture hematoma reorganizes to form a procallus.
E) No exceptions;all of the choices are involved in the process of bone repair.

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