Question

Which organ obtained from a cadaver is not used for transplantation?

• A. Blood vessel
• B. Lung
• C. Liver
• D. Bladder

Hint:

When this organ fails, surgeons rebuild it from the patient's own bowel rather than graft a donor one.

Answer 1

The Correct Option is D

Step 1: Cadaveric (deceased) donors are a major source of organs and tissues for transplantation. Commonly retrieved organs include the kidneys, liver, heart, lungs, pancreas and intestine, while tissues include corneas, heart valves, blood vessels, bone, skin and tendons.
Step 2: Blood vessels are routinely harvested and used as vascular grafts (for example in coronary or peripheral bypass), lungs are transplanted in end-stage respiratory failure, and the liver is one of the most commonly transplanted solid organs. So options A, B and C are all valid transplant organs/tissues.
Step 3: The urinary bladder is NOT transplanted as an organ. When the bladder is diseased or removed (for example after radical cystectomy), it is reconstructed or replaced using the patient's own bowel (ileal conduit, neobladder or continent diversion), not by grafting a donor bladder. Bladder allotransplantation is not a standard procedure because of its complex innervation and the availability of good reconstructive alternatives.
Step 4: Therefore the organ from a cadaver that is not used for transplantation is the bladder.
Answer: D (Bladder).