Question

What term describes the long tube that connects the mouth to the anus?

Answer 1

gastrointestinal tract

The organs in Figure below make up the gastrointestinal  GI  tract. This is essentially a long tube that connects the mouth to the anus. Food enters the mouth and then passes through the rest of the GI tract. Food waste leaves the body through the anus. In adults, the GI tract is more than 9 meters  30 feet  long!.