Final answer:
Drapes with openings for surgical exposure are known as fenestrated drapes, designed for maintaining a sterile field while focusing on a specific area.
Step-by-step explanation:
Drapes that have openings for exposure of the area to be incised are called fenestrated drapes. This type of drape has a specific opening, often with a reinforced adhesive area surrounding it, which allows surgeons to access the surgical site while maintaining a sterile field around the area. Fenestrated drapes are particularly used for surgical procedures where only a small area needs to be exposed.