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
SystemUrinary system
Identifiers
TA98A08.1.01.018
TA23378
FMA74299
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.

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References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)


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