A transplanted kidney is most likely to be placed in which of the following locations within the recipient?Choose from the following:(A) site of removed kidney (diseased)(B) right iliac fossa(C) left iliac fossa(D) true pelvic cavity ### Urinary System AnatomyThis image provides a detailed view of the urinary system's anatomical structure, focusing on its retroperitoneal location.**Key Structures and Annotations:**1. **Kidneys:** - Visible on both sides of the image (e.g., labeled with numbers like 3, 4a, 4c, 4p, 5). - Responsible for filtering blood and producing urine.2. **Ureters (9):** - Tubes connecting each kidney to the bladder, transporting urine.3. **Bladder (labeled as 10):** - A muscular sac that stores urine until elimination.4. **Major Blood Vessels:** - The aorta (red) and the inferior vena cava (blue), supplying blood to and from the kidneys (observed centrally in the diagram).5. **Other Labeled Elements:** - Numbers such as 2, 23, 21-22i mark various anatomical details, potentially referencing additional components of the urinary or reproductive systems.**Note on "Retroperitoneal":**- The term "retroperitoneal" refers to the location of the kidneys, meaning they are situated behind the peritoneum, the lining of the abdominal cavity.This visual guide is instrumental for students and professionals in understanding the spatial relationships between these critical components of the human urinary system.

Kidney transplantation is a surgery that puts healthy kidneys in your body. Transplanted kidneys take over the function of two failed kidneys, so you no longer need dialysis. The procedure usually takes three hours to complete. During the implant, the surgeon inserts a new kidney into your lower abdomen and connects a new blood vessel with your arteries and veins. Usually, new kidneys begin to urinate as soon as your blood begins to flow. But sometimes it takes a few weeks to start working. Many transplanted kidneys come from deceased donors. Some come from a living family member. Waiting for new kidneys can be long. It provides long-term survival and improved quality of life compared to dialysis. This procedure is the treatment of choice for end-stage renal disease (ESRD) in eligible patients. The correct answer is option (B), the right iliac fossa. The right-iliac fossa is the standard fossa for transplanting the donor kidney to the recipient because of the more superficial position of the external iliac vein. So option B is correct. The technique of transplantation of the right kidney of the donor to the left iliac fossa of the recipient. The renal artery, which was posterior in the normal position, now lies anteriorly to match the position of the hypogastric artery in relation to the iliac vein. (A) site of the removed kidney (diseased) The diseased kidney is not removed in the renal transplantation procedure. There are certain conditions that might require the kidney to be removed only if the patient acquired repeated infection that might spread to the transplanted kidney, uncontrollable high blood pressure due to the original kidney, or a condition called reflux. So option A is not correct. (C) left iliac fossa It is the site for kidney-pancreas transplantation. Thus option C is incorrect. Contributing pancreas is usually located in the lower right part of the human abdomen. The blood vessels from the new pancreas are attached to the human bloodstream. The donor duodenum (the first part of the small intestine behind the stomach) is attached to the intestines or bladder of a person. (D) true pelvic cavity The kidney is surgically placed at the extraperitoneal in the iliac fossa. The small pelvis (or "true pelvis") is the space closed by the pelvic girdle and below the pelvic girdle: between the pelvic inlet and the pelvic floor. This space is a short, curved ditch, deeper in the back than its front wall. Some consider this region to be the whole pelvic cavity. Thus option D is incorrect. The correct answer is the right iliac fossa.