What instrument is used to hold back the lips or sides of a wound during surgery?

The correct instrument for holding back the lips or sides of a wound during surgery is a retractor. Retractors are specifically designed to hold back tissues, providing better visibility and access to the surgical site. They come in various sizes and shapes to accommodate different types of surgeries and can be either handheld or self-retaining.

The use of retractors is essential in surgical procedures as they help expose the underlying structures, allowing surgeons to work more efficiently and with greater precision. By keeping the surgical area open, retractors minimize tissue damage and help in maintaining a clear view of the operative field.

In contrast, instruments like scalpels are intended for cutting tissues, forceps are typically used for grasping or holding tissues, and scissors are meant for cutting. While these tools are crucial in surgical procedures, they do not serve the purpose of holding back the edges of a wound.