The larger tubules in this image are collecting ducts (cd). The smaller tubules are ascending thick segments (dt) of loops of Henle. Descending thin segments (ts) are also present but not as conspicuous.
Click on the thumbnail at right for another view of a similar region in which a thin segment is clearly visible.
Medullary tubulescd = collecting duct
(not to scale)
Click on the thumbnail at left for lower magnification.
To compare medullary tubules in longitudinal section, click on one of the thumbnails at right.
Comments and questions: dgking@siu.edu
SIUC / School
of Medicine / Anatomy / David
King
https://histology.siu.edu/crr/RN011b.htm
Last updated: 30 April 2024 / dgk