What is the word root of the term used to describe the excision of the stomach?

Karen had an injury to her nose since her last checkup. Identify the prefix in the term used to describe the location of the scar.

What type of instrument was used on Karen to visually examine her stomach?

Karen: I'm glad. Do you think I’ll need to have any other tests of my stomach, intestine, or colon after my gastrectomy? Dr. Lohman: We may want to consider checking your colon using a colonoscope to make sure that you don’t have any additional problems. Identify the suffix used in the test Dr. Lohman recommended?