* These vessels are said to embrace the distal tubule
* These vessels are said to embrace the distal tubule
* Here a special apparatus called the Juxtaglomerular Apparatus has 3 different structures:
* Here a special apparatus called the Juxtaglomerular Apparatus has 3 different structures:
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** The tubular epithelial cells of the distal tubule which are in contact with the arterioles supplying the glomerulus of that nephron are called the '''macula densa'''. They play a vital role in the [[Autoregulation of GFR - Anatomy and Physiology#Tubuloglomerular Feedback (TGF)|regulation of the GFR]].
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** The tubular epithelial cells of the distal tubule which are in contact with the arterioles supplying the glomerulus of that nephron are called the '''macula densa'''. They play a vital role in the [[Glomerular Filtration Rate#Autoregulation|regulation of the GFR]].
** The Juxtaglomerular Cells are smooth muscle cells which adjoin the macula densa in the capillary wall.
** The Juxtaglomerular Cells are smooth muscle cells which adjoin the macula densa in the capillary wall.
** The Extraglomerular Mesangium has an unclear function
** The Extraglomerular Mesangium has an unclear function