Final answer:
The gallbladder is the organ that collects, stores, concentrates, and transports bile to the intestine for digestion.
Step-by-step explanation:
The gallbladder is a nonvital intraperitoneal organ mentioned in the student's question. Its primary function is to collect, store, concentrate, and transport bile to the intestine to aid in digestion, particularly of fats.
The gallbladder is a small, hollow, pouch-like organ located just under the right side of the liver, connected via the cystic duct to the bile ducts.
Bile is produced by the liver, stored and concentrated in the gallbladder, and then released into the duodenum of the small intestine when needed to help digest lipids.