Which combining form is associated with the gallbladder?

The combining form associated with the gallbladder is "cholecyst/o." This term breaks down into "chole," which refers to bile, and "cyst," which denotes a sac or pouch. The gallbladder is primarily responsible for storing and concentrating bile, which is produced by the liver and released into the small intestine to aid in the digestion of fats. Hence, "cholecyst/o" specifically pertains to the gallbladder itself.

The other terms, while they relate to digestive processes, refer to different structures or concepts. For example, "hepat/o" relates to the liver, which produces bile but is not the gallbladder. "Tox" refers to toxins, which can be associated with harmful substances in the body but do not directly relate to the anatomy of the gallbladder. "Lapar/o" pertains to the abdomen or abdominal wall, often used in terms related to surgical procedures, but does not specifically indicate the gallbladder. Therefore, "cholecyst/o" is the correct term for the gallbladder.