Which group of organs are considered solid organs?

• A. Heart, Lungs, and Kidneys.
• B. Liver, pancreas, and spleen.
• C. Stomach and gallbladder.
• D. Intestines and bladder.

Answer: (B)

Solid organs are dense, parenchymal structures with little luminal space and rich blood supply; injuries to them can cause significant internal bleeding. The liver, pancreas, and spleen are classic examples of solid organs because they are thickly built tissues without a functional lumen like a bag or sac.

Stomach and gallbladder are hollow organs—they contain a lumen that can fill with contents (food in the stomach, bile in the gallbladder). Intestines and bladder are also hollow, with lumens that can distend or rupture. The heart and lungs aren’t categorized in this same solid-vs-hollow framework in this context, since they have different functional classifications.

So, the group that represents solid organs is liver, pancreas, and spleen.