This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Ducts of bellini are found in 
Select and explain. 
A. Pancreas, B. Submandibular salivary gland, C. Kidney, D. Liver
C: Kidney
Answer: C: Kidney 
Explanation: The Uriniferous Tubules - From a functional point of view the kidney may be regarded as a collection of numerous uriniferous tubules that are specialised for the excretion of urine. Each uriniferous tubule consists of an excretory pa called the nephron, and of a collecting tubule. The collecting tubules draining different nephrons join to form larger tubules called the papillary ducts (of Bellini), each of which opens into a minor calyx at the apex of a renal papilla. Each kidney contains one to two million nephrons. Urinary tubules are held together by scanty connective tissue. Blood vessels, lymphatics and nerves lie in this connective tissue. REF : Inderbir Singh's Textbook of Human Histology, seventh edition, pg.no., 304.