Papillary ducts
| General Information | |
|---|---|
| Latin | ductus papillaris |
| Greek | |
| TA98 | |
| TA2 | |
| FMA | |
| Details | |
| System | Urinary system |
| Artery | |
| Vein | |
| Nerve | |
| Lymphatic drainage | |
| Precursor | Collecting duct system |
| Function | Transport of urine |
| Identifiers | |
| Clinical significance | |
| Notes | |
The papillary ducts, also known as ducts of Bellini, are the final segments of the collecting duct system in the kidney. These ducts play a crucial role in the transport of urine from the nephron to the renal pelvis.
Structure[edit | edit source]
Papillary ducts are located in the renal medulla and are formed by the convergence of multiple collecting ducts. They open at the renal papilla, which is the tip of the renal pyramid. The urine then flows from the papillary ducts into the minor calyx, and subsequently into the major calyx and renal pelvis.
Function[edit | edit source]
The primary function of the papillary ducts is to convey urine from the nephron to the renal pelvis. As the final part of the collecting duct system, they play a role in the concentration of urine by allowing water reabsorption under the influence of antidiuretic hormone (ADH).
Clinical significance[edit | edit source]
Obstruction or damage to the papillary ducts can lead to conditions such as hydronephrosis or renal papillary necrosis. These conditions can impair kidney function and lead to symptoms such as flank pain, hematuria, and urinary tract infections.
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
