Here you can learn about the basic histology and working mechanism of the glomerular filtration membrane with the help of diagrammatic explanation in a very short 5 min video lecture. Timeline: 0:00 - Introduction (three filtration membranes) 1:11 - First membrane: blood vessel (fenestrated endothelia) 3:37 - Second membrane: basement membrane 4:19 - Third membrane: podocytes 4:57 - Summary