Final answer:
A patient scrapes his or her knee, the type of injury received is called abrasion. It is a superficial injury that involves the removal of the top layer of skin.
Step-by-step explanation:
A patient scrapes his or her knee, the type of injury received is called abrasion. An abrasion is a superficial injury that involves the removal of the top layer of skin. It is also known as a scrape or a graze. When the skin is scraped, it can result in a break in the skin that may expose the underlying tissues to pathogens, therefore it is important to keep the scrape clean and protected until it heals.