Which organ is NOT typically included in the list of organs that can be donated?

The stomach is not typically included in the list of organs that can be donated. In organ donation, the focus is on vital organs that can be transplanted successfully and that play a critical role in sustaining life. The heart, liver, and kidneys are key organs that can be removed from a deceased donor and transplanted into recipients to restore or enhance life. These organs have proven transplantation methods and a well-established need among patients awaiting organ transplants.

The stomach, on the other hand, is part of the digestive system and does not have the same capability for transplantation, as it is not essential in the same manner as the other listed organs. While tissues such as skin or corneas can be donated, the stomach does not fall under the category of viable organ transplants that are typically carried out in the context of organ donation. Therefore, the correct choice highlights the distinction between organs that are commonly donated and those that are not suitable for transplantation.