Complete the following blanks for Questions 4-9 4. Both kidneys are located where the is slightly larger than the and the is lower than the 5. Describe the gross structural features of the kidney including the capsule, cortex, medulla, lobes, columns, pyramids, papilla, calyces, and pelvis. 6. The nephron is made up of the and the 7. What are the components of the renal corpuscle? and 8. What are the main structures of the collecting system? 9. Which type of nephron is essential for the conservation of water and the production of concentrated urine?.