Which preparation technique is used to remove minerals so that bone can be thin-sectioned and stained in light microscopy?

Which preparation technique is used to remove minerals so that bone can be thin-sectioned and stained in light microscopy?

• A. Decalcified bone
• B. Ground bone
• C. Frozen bone
• D. Fresh bone

Answer: (A)

Removing minerals from bone is needed to convert a hard, mineralized tissue into something soft enough to cut into thin sections for light microscopy. Decalcification dissolves calcium salts in bone, usually with acid or a chelating agent like EDTA, so the tissue becomes pliable and can be embedded, sectioned at a few micrometers, and stained with standard dyes. This lets you clearly see the cellular details and the bone matrix under a light microscope. Ground bone and frozen bone involve handling mineralized tissue in ways that preserve the mineral content or avoid decalcification, which means the resulting sections are not the same as routine thin paraffin sections stained for light microscopy; they’re used for special applications or different types of staining. Fresh bone isn’t processed into slides at all, so it wouldn’t yield prepared thin sections for microscopic analysis.

Removing minerals from bone is needed to convert a hard, mineralized tissue into something soft enough to cut into thin sections for light microscopy. Decalcification dissolves calcium salts in bone, usually with acid or a chelating agent like EDTA, so the tissue becomes pliable and can be embedded, sectioned at a few micrometers, and stained with standard dyes. This lets you clearly see the cellular details and the bone matrix under a light microscope. Ground bone and frozen bone involve handling mineralized tissue in ways that preserve the mineral content or avoid decalcification, which means the resulting sections are not the same as routine thin paraffin sections stained for light microscopy; they’re used for special applications or different types of staining. Fresh bone isn’t processed into slides at all, so it wouldn’t yield prepared thin sections for microscopic analysis.