Q. Z plasty is an example of a) Advancement flap b) Delayed flap c) Transposition flap d) Rotation flap Answer for all Flaps in plastic surgery are the cornerstone of management of skin and wound defects. Advancement flaps are used to cover skin defects in face, scalp and neck. Examples of advancement flaps are monopedicled flaps, bipedicled and V Y advancement flap. Delay of flap is a surgical preconditioning, in which the blood supply is partially blocked prior to actual procedure. It increases the length of the flap as well as its uptake rate. Transposition flap – used in head and neck surgery, a rectangular flap is rotated.