Which term refers to the formation of stones that block bile flow, often causing pain after meals?

• A. Appendix
• B. Gallstones
• C. Liver function
• D. Heartburn/ acid reflux

Answer: (B)

Formation of stones in the gallbladder that block bile flow is called gallstones. These stones, often made of cholesterol or bilirubin, can obstruct the cystic duct or common bile duct. When a fatty meal prompts the gallbladder to contract to release bile, a stone can block the flow and trigger biliary colic—a sharp, mid‑to‑upper abdominal pain that may radiate to the back or right shoulder, sometimes with nausea. The other options don’t fit because the appendix is a different organ, liver function refers to how well the liver works, and heartburn/acid reflux involves stomach acid irritating the esophagus.