The gallbladder is a small sac-like organ located under the liver.
Stones can form in the gallbladder.
胆管 is the bile duct, the tube that carries bile from the gallbladder to the intestine.
Standard kanji spelling for gallbladder.
Rarely used kanji form; 嚢 is the standard character.
Common kana-mixed spelling, easier to read.
From 胆 (たん, 'gall') + 嚢 (のう, 'sac, bag').