Which tissue attenuates the most x-rays?

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Multiple Choice

Which tissue attenuates the most x-rays?

Explanation:
Attenuation grows with density and atomic number. Bone is dense and rich in calcium, giving it a much higher linear attenuation coefficient than soft tissues. That means it absorbs more of the X-ray beam, so fewer photons reach the image receptor and bone shows up much brighter on the radiograph. Air has very low density and attenuates little, while soft tissues like fat and water have similar, lower attenuation than bone. So the tissue that attenuates the most is bone.

Attenuation grows with density and atomic number. Bone is dense and rich in calcium, giving it a much higher linear attenuation coefficient than soft tissues. That means it absorbs more of the X-ray beam, so fewer photons reach the image receptor and bone shows up much brighter on the radiograph. Air has very low density and attenuates little, while soft tissues like fat and water have similar, lower attenuation than bone. So the tissue that attenuates the most is bone.

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