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In the renal system, peritubular capillaries are tiny blood vessels that travel alongside nephrons allowing reabsorption and secretion between blood and the inner lumen of the nephron. Peritubular capillaries surround the proximal and distal tubules, as well as the loop of Henle, where they are known as vasa recta.
Basically, they reabsorb useful substances such as glucose and amino acids and secrete certain mineral ions and excess water into the tubule.
- http://faculty.stcc.edu/AandP/AP/AP2pages/Units24to26/urinary/nephron.htm. Missing or empty
- Histology image: 16016loa – Histology Learning System at Boston University
- Physiology: 7/7ch03/7ch03p10 - Essentials of Human Physiology - "Renal Vasculature: Efferent Arterioles & Peritubular Capillaries"
- Anatomy photo: Urinary/mammal/vasc0/vasc4 - Comparative Organology at University of California, Davis - "Mammal, renal vasculature (EM, Low)"