* These are then subdivided into [[Useful definitions - Renal Anatomy & Physiology#R| renal lobules]] comprising of [[The Nephron - Anatomy & Physiology| nephrons]], [[Useful definitions - Renal Anatomy & Physiology | a medullary ray]] and [[Microscopic Anatomy of the Nephron - Anatomy & Physiology#Collecting Duct| a collecting duct]]. | * These are then subdivided into [[Useful definitions - Renal Anatomy & Physiology#R| renal lobules]] comprising of [[The Nephron - Anatomy & Physiology| nephrons]], [[Useful definitions - Renal Anatomy & Physiology | a medullary ray]] and [[Microscopic Anatomy of the Nephron - Anatomy & Physiology#Collecting Duct| a collecting duct]]. |