Structure [edit]. The gluteus maximus is the largest of the gluteal muscles and one of the strongest muscles in the human body. It inserts at the iliotibial band and the gluteal tuberosity of the femur.
Causes. Toxic megacolon occurs as a complication of inflammatory bowel disease, such as. and, and infections of the colon. The term toxic means that this complication occurs with infection or inflammation, and is very dangerous.1  ulcerative colitis.2  Crohn's disease.oxic megacolon occurs as a complication of inflammatory bowel disease, such as. and, and infections of the colon. The term toxic means that this complication occurs with infection or inflammation, and is very dangerous. 1  ulcerative colitis.
Megacolon is a condition in which waste is remaining in the colon, causing the diameter of the colon to become abnormally enlarged. It is typically associated with chronic constipation, or obstipation â severe, obstinate constipation that blocks the passage of gas as well as feces.