Which position involves a woman lying on her back with knees flexed and feet in stirrups?

The position described, with a woman lying on her back with her knees flexed and feet in stirrups, is known as the lithotomy position. This is commonly used in various medical examinations and procedures, particularly in obstetrics and gynecology, allowing the healthcare provider access to the pelvic area. The design of the stirrups in this position assists with stabilizing the legs, providing better visibility and access for the clinician while also enabling a more relaxed position for the patient.

In contrast, other positions like the sitting position would not involve the legs being in stirrups or flexed in such a manner, and the supine position simply describes a person lying flat on their back without the specific requirements regarding legs. The Trendelenburg position, which has the patient lying on her back with the legs elevated, is also distinct from the scenario given.