Surgical removal of all or part of the stomach.

• A. Gastrectomy
• B. Colostomy
• C. Chyme
• D. Autodigestion

Answer: (A)

Removing all or part of the stomach is called gastrectomy. The word combines gastr- meaning stomach with -ectomy meaning removal, so it covers both partial and total removal depending on how much stomach is taken out. This term is used in settings like gastric cancer or peptic ulcer disease, and it has big implications for digestion since the stomach’s role in mixing food with acid and enzymes is altered. The other terms describe different things: colostomy is creating an opening from the colon to the outside of the body, chyme is the semiliquid mass of partly digested food after processing in the stomach, and autodigestion refers to tissue being digested by its own enzymes. So the surgical removal of the stomach is gastrectomy.