Medullary ray (anatomy)
| Medullary ray | |
|---|---|
| Details | |
| System | Urinary system |
| Identifiers | |
| Latin | radii medullares |
| TA98 | A08.1.01.018 |
| TA2 | 3378 |
| FMA | 74299 |
| Anatomical terminology | |
In anatomy, a medullary ray (Ferrein's pyramid) is the middle part of a cortical lobule (or renal lobule). Each consists of a group of nephrons in the renal cortex.[1] Their name is potentially misleading, as "medullary" refers to their destination, not their location. They travel perpendicular to the capsule, and extend from the cortex to the medulla. They may be visualised during urography.[1]
- ^ a b Bigongiari LR, Patel SK, Appelman H, Thornbury JR (December 1975). "Medullary rays. Visualization during excretory urography". The American Journal of Roentgenology, Radium Therapy, and Nuclear Medicine. 125 (4): 795–803. doi:10.2214/ajr.125.4.795. PMID 1211509.