IMMUNOLOGY

Detailed explanation-1: -Cuts may slice off several layers of skin. As long as some of the layers of skin are still in place, new skin will form in the bottom of the wound and along the wound edges. The wound will heal from the bottom up.

Detailed explanation-2: -A cut is a break or opening in the skin. It is also called a laceration.

Detailed explanation-3: -Skin is the largest organ in our body and helps protect it from germs (bacteria, fungi, and viruses) that live on its surface. So, anything that breaks the skin is a wound because when the skin is broken, there’s a risk of germs getting into the body and causing an infection.

Detailed explanation-4: -Why do cysts form? Some of the cells in the top layer of skin produce keratin, a protein that gives skin its strength and flexibility. Normally, these cells move up to the surface of the skin as they start to die so they can be shed. But the cells sometimes move deeper into the skin and multiply, forming a sac.

Detailed explanation-5: -The wound starts to fill in with new tissue, called granulation tissue. New skin begins to form over this tissue. As the wound heals, the edges pull inward and the wound gets smaller.

Detailed explanation-6: -Most wounds do not penetrate completely through all the layers of the skin (partial thickness) and will heal eventually. If the skin has been destroyed (full thickness) over large areas, such as in severe burns, it can’t grow back properly.