Medullary ray (anatomy)
In anatomy, the medullary ray (Ferrein's pyramid) is the middle part of the cortical lobule or renal lobule, consisting of a group of straight tubes connected to the collecting ducts.
| Medullary ray | |
|---|---|
| Details | |
| System | Urinary system |
| Identifiers | |
| TA | A08.1.01.018 |
| FMA | 74299 |
| Anatomical terminology | |
Their name is potentially misleading — the "medullary" refers to their destination, not their location. They travel perpendicular to the capsule and extend from the cortex to the medulla.
Additional Images
Medullary rays
Medullary rays
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
- Histology image: 16003loa – Histology Learning System at Boston University — "Urinary System: kidney, H&E, cortex and medullary ray"
- Histology image: 15901loa – Histology Learning System at Boston University — "Urinary System: neonatal kidney"
- UIUC Histology Subject 1008
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