Final answer:
An endoscopic investigation of the uterus and tubes is known as a laparoscopy, which utilizes an endoscope to visually inspect the internal reproductive organs.
Step-by-step explanation:
An endoscopic investigation of the uterus and tubes is referred to as laparoscopy. This medical procedure involves the insertion of a tiny camera through a small incision in the abdomen to visually inspect and diagnose potential issues with the reproductive organs. It can help diagnose conditions like endometriosis by allowing physicians to see endometrial tissue growths. The insertion is guided by a device called an endoscope, which can also be used in various diagnostic and surgical procedures such as arthroscopic surgery or to obtain samples through less invasive means.
Endoscopic ultrasound is another related procedure for imaging internal organs, including the reproductive system, which indirectly relates to the topic at hand.