DoctorWhitey - Cul-de-sac: In anatomy, a blind pouch or cavity that is closed at one end. The term cul-de-sac is used specifically to refer to the rectouterine pouch (the pouch of Douglas),
Rectouterine pouch (rectouterine excavation, pouch of Douglas) - Human Anatomy | Kenhub - YouTube
POCUS 101 on Twitter: "10 In females, free fluid from the abdominal cavity sinks into the pelvic cavity and settles in the Pouch of Douglas (also called the Posterior Cul-De-Sac and Rectouterine