What type of fracture occurs when bones break cleanly and do not penetrate the skin?

The type of fracture where the bone breaks cleanly and does not penetrate the skin is known as a "closed" or "simple" fracture. Here are the steps to understand this:

1. A fracture is a term used by medical professionals to describe a broken bone.
2. Fractures can be categorized in many ways. One of the ways is based on whether the broken bone has pierced the skin or not.
3. If the broken bone has pierced the skin, it is called an "open" or "compound" fracture.
4. On the other hand, if the broken bone has not pierced the skin, it is called a "closed" or "simple" fracture.
5. Therefore, the type of fracture where the bone breaks cleanly and does not penetrate the skin is a closed or simple fracture.