What is the primary purpose of decalcification?

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Multiple Choice

What is the primary purpose of decalcification?

Explanation:
Decalcification is used to remove calcium from calcified tissues so the specimen becomes soft enough to be cut into thin sections and embedded in paraffin. Calcium makes bone and other mineralized tissues rigid, which would damage the microtome blade and prevent proper infiltration during embedding. This step isn’t about hardening, staining, or decolorization; those occur after or during other parts of processing. If decalcification is incomplete, sections can be torn or uneven; if it’s overly long, tissue morphology and staining can be affected—but the primary goal is to enable embedding by removing mineral content.

Decalcification is used to remove calcium from calcified tissues so the specimen becomes soft enough to be cut into thin sections and embedded in paraffin. Calcium makes bone and other mineralized tissues rigid, which would damage the microtome blade and prevent proper infiltration during embedding. This step isn’t about hardening, staining, or decolorization; those occur after or during other parts of processing. If decalcification is incomplete, sections can be torn or uneven; if it’s overly long, tissue morphology and staining can be affected—but the primary goal is to enable embedding by removing mineral content.

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