Answer:
The best answer to the question: ___ Are caused by a scraping away of the skin´s surface and are susceptible to infection, would be: Abrasions.
Step-by-step explanation:
Abrasions are the term that is medically used when talking about what we normally call a scratch, or a scrape. Abrasions happen when there is friction against the skin tissue that breaks apart the unity of the upper layers of the skin. Infection happens to these because we must remember that there are small blood vessels near the upper layers of the skin, and underlying layers of live tissue (the uppermost layers of skin are not live cells) that become exposed with an abrasion. When this happens, normal bacteria that live on our healthy skin become opportunistic, and invade the exposed tissue, and if there is a pathogen with which we come in contact, we will get infected.