In a certain type of nephron in the human kidney, the loop of Henle is too short and extends only very little into the medulla. Additionally, the vasa recta is either absent or highly reduced. Identify this type of nephron and its relative abundance among the total nephrons.

Step-by-step solution

According to NCERT, in the majority of nephrons (about 85 percent), the loop of Henle is too short and extends only very little into the medulla. These are called cortical nephrons. In these cortical nephrons, the vasa recta is either absent or highly reduced. Juxtamedullary nephrons, which constitute a minority (about 15 percent), have a long loop of Henle running deep into the medulla and possess a well-developed vasa recta. Therefore, the described features belong to cortical nephrons, which form the majority. A