Peritubular capillaries
Peritubular Capillaries
Peritubular capillaries (pronunciation: per-i-tu-bu-lar cap-i-lar-ies) are tiny blood vessels, located in the kidney, that play a crucial role in the process of urine formation.
Etymology
The term "Peritubular capillaries" is derived from the Latin words 'peri' meaning around, 'tubulus' meaning a small tube, and 'capillaris' meaning hair-like. Thus, the term refers to the small, hair-like blood vessels that surround the tubules in the kidney.
Function
Peritubular capillaries are responsible for reabsorbing useful substances such as water and solutes from the renal tubules back into the blood during the process of urine formation. They also carry away the waste products that are to be excreted in the urine.
Structure
Peritubular capillaries are a network of tiny blood vessels that surround the renal tubules. They originate from the efferent arteriole, which is the small artery that carries blood away from the glomerulus, a network of tiny blood vessels in the kidney where the initial filtration of blood takes place.
Related Terms
See Also
External links
- Medical encyclopedia article on Peritubular capillaries
- Wikipedia's article - Peritubular capillaries
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