the clarity of structures on a radiograph

increased numbers of immature white blood cells circulating in the blood

cavity within a bone or other tissue; paranasal sinuses are air-filled cavities in the bones of the face

system of membrane-bound tubes and sacs that is involved in the synthesis of lipids

muscle tissue with no striations that is not under voluntary control

a substance is dissolved in another

the classification of every cell in the body except for the germ (reproductive) cells

damage to the tissues caused by X-rays which becomes apparent during the individual's lifetime