Whole-body plastination begins with much the same method as traditional embalming; a mixture of embalming fluids and water are pumped through the cadaver via arterial injection. After this step is complete, the anatomist may choose to dissect parts of the body to expose particular anatomical structures for study. After any desired dissection is completed, the cadaver is submerged in acetone. The acetone draws the moisture and soluble fats from the body and flows in to replace them. The cadaver is then placed in a bath of the plastic or resin of the practitioner's choice and the step known as forced impregnation begins. The bath generates a vacuum that causes acetone to vaporize, drawing the plastic or resin into the cells as it leaves. Once this is done the cadaver is positioned, the plastic inside it is cured, and the specimen is ready for use.