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Cartilage & Bone Test Bank

In the following slides are examples of bone andcartilage, cellular elements and other structuresassociated with this hard connective tissue. You

can test your ability to recognize them by 1) firsthitting ENTER to see the question, 2) then hittingthe ENTER key to reveal the answer, and finally 3)hitting the ENTER key to find a concise

explanationfor the correct identification.

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Identify the specific tissue.

Elastic cartilage.

Chondrocytes in lacunae

indicate that this iscartilage. The presenceof highly refractile fibersin the extracellularmatrix indicate elastic

cartilage.

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The cells surrounding thetip of the pointercomprise what specificlayer?

Cellular layer of theperichondrium.

Flattened, undifferentiatedcells between thecartilaginous mass andthe fibrous layerrepresent the cellularlayer.

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Name the tissue andbe specific.

Fibrocartilage.

The presence ofchondrocytes inlacunae,hypocellularity,dense aggregatesof collagen bundlesall indicate fibrouscartilage.

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The tips of the pointerslie in the lumina ofwhat structures?

Haversian canals.The arrangement of

concentric lamellaeand osteocytesaround a lumenindicate that this is aHaversian canal inan osteon.

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Name the cells at the tipof the pointer.

Osteoblasts.

Large, dark-stainingcells adjacent to bone(osteocytes inlacunae) along withthe light pink osteoidindicate bonedeposition byosteoblasts.

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Name the cell at thetip of the pointer.

Osteoclasts.

Largemultinucleatedcells inHowshipslacuna adjacent

to bone (noteosteocytes).

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The cells within theoutlined arearepresent whatspecific region?

Zone ofproliferation.

Chondrocytesstacked in rowsare indicative ofthis zone.

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Name the specific region ofthe epiphysis as noted bythe structures betweenthe arrowheads.

Zone of ossification.

The pink staining bonetissue being laid down byosteoblasts on a core ofacellular calcified cartilageremnants indicate thezone of ossification.

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Identify the tissue.

Dense bone.

This dense bone ismostly lamellar but

the are someHaversian systemsvisible.

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Identify the structureat the tips of thepointers.

Perichondrium.A small bar of

hyaline cartilageis present in the

bronchus. Itscapsule isperichondrium.

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