👉 A cystic duct in the human body is a common organ that serves as a pathway for substances to enter and exit the body. It is also known as the "cystic duct," which is an unusual name for this structure due to its unique shape and function. The term "cystic duct" was originally used by European physicians to describe the cystic structures in the human body, such as the liver, kidney, and gallbladder. However, it has been replaced with the