Elizabeth Martin and Robert Hine. Latest Edition (7 ed.) Fully revised and updated, the sixth edition of this dictionary provides comprehensive coverage of biology, biophysics, and biochemistry, as well as key terms from medicine and palaeontology.
For example, if someone scratches a mole until it bleeds, the resulting lesion, a crust, is now a secondary skin lesion. The most common secondary skin lesions include: 1  crust: a crust, or a scab, is created when dried blood forms over a scratched and irritated skin lesion. 2  ulcer: typically caused by a bacterial infection or physical trauma. 3  scale: patches of skin cells that build up and then fall off the skin.
Blood Stains. 1  1. Always read and follow the care instructions and any warnings on the garment label. 2  2. Flush cold water through the stain and scrape off crusted material. 3  3. Soak for 15 minutes in a mixture of 1 quart of lukewarm water, 1/2 teaspoon liquid hand dish washing detergent, and 1 tablespoon ammonia.