Final answer:
The ureters are delicately handled during gynecologic surgery using a surgical instrument to avoid injury. They are essential for urine transport and are anatomically positioned in a way that requires careful surgical maneuvering.
Step-by-step explanation:
During gynecologic surgery, the ureters must be identified and retracted gently. A surgical instrument, which is not specified in the question, is often used to do this. The ureters are approximately 30 cm long structures that carry urine from the kidneys to the bladder. They are composed of an inner mucosa with transitional epithelium, a muscular layer facilitating peristaltic contractions, and an adventitial layer that anchors them in place. It is critical to handle the ureters carefully during surgery to avoid damage, due to their important role in transporting urine and their anatomical placement which is susceptible to injury.