Flip-flops and latches are used as data storage elements. A flip-flop stores a single bit (binary digit) of data; one of its two states represents a one and the other represents a zero. Such data storage can be used for storage of state, and such a circuit is described as sequential logic.
1 Incisional hernia can occur through a scar if you have had abdominal surgery in the past. 2  Umbilical hernia is a bulge around the belly button. 3  It occurs when the muscle around the belly button does not close completely after birth.
Burns: Types and Treatments. Scars are your body's response to trauma, and they're a byproduct of your body's healing process. They're made mostly from the protein collagen, which is found in the dermis, or second layer of your skin. After a burn, your body uses collagen as a framework for repairing your tissues.