While it's a common question, "Which is the longest internal organ in the human body?" is open to interpretation because organs can be measured by length, surface area, or weight. However, if we're talking about length, the answer isn't the liver.
Based on the available reference, the largest internal organ is the liver. The reference from BYJU'S makes no mention of the longest organ, only the largest. To accurately answer which internal organ is the longest, we'd need additional sources addressing the length of various internal organs. Because this information is not available in the supplied reference, this question cannot be answered completely.
