Final answer:
Twisting of part of the intestine upon itself is known as intestinal volvulus, which can cause a blockage and lead to serious complications. The condition where the wall of the intestine becomes inflamed is diverticulitis, similar to appendicitis.
Step-by-step explanation:
Twisting of part of the intestine upon itself is known as intestinal volvulus, a condition where a loop of intestine twists around itself, causing a blockage. This can lead to a lack of blood flow to the affected area, resulting in tissue damage and potentially life-threatening complications.
Diverticulitis is the condition in which the wall of the intestine becomes inflamed, often due to infection in the small pouches called diverticula that can form in the colon. It is similar to the condition of having an inflamed appendix, known as appendicitis.