Related Experiment Video
Updated: Jul 30, 2025

Physiology Lab Demonstration: Glomerular Filtration Rate in a Rat
Published on: July 26, 2015
Hands-on nephron activity during lecture of urine formation
1Department of Physical and Biological Sciences, Coconino Community College, Flagstaff, Arizona, United States.
Abstract:
Urine formation in the nephron can be a very intimidating concept to students. This straightforward activity, performed by students during the nephron lecture, can help enforce the concepts as they uncover the structures and functions involved in urine formation.NEW & NOTEWORTHY A straightforward activity for students to demonstrate the steps of urine formation and apply it to clinical relevance, this easy-to-develop activity is utilized during lecture for students to tactically "see" how the various parts of the nephron function.
Related Concept Videos
Formation of Concentrated Urine
Formation of Dilute Urine
Filtrate Osmolarity in the PCT
Initially, as the filtrate passes through the proximal convoluted tubule (PCT), its...
Physiology of Urine Formation
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
Filtration and Urine Formation
Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration
Physiology of the Genitourinary System III: Urine Concentration and Dilution

