Larger collecting ducts are quite prominent deep in the medulla. The surrounding tissue consists of medullary blood vessels and thin segments of loops of Henle. Because both are lined by simple squamous epithelium, vessels and loops can be difficult to distinguish, except when blood is present in the vessels.
Click on the thumbnail at near left for a higher-magnification view of this region, or on the thumbnail at far left for a view closer to the renal pelvis.
Click on the thumbnail at right for comparison of tubules higher in the medulla.
RENAL IMAGE INDEX
Comments and questions: dgking@siu.edu
SIUC / School
of Medicine / Anatomy / David
King
https://histology.siu.edu/crr/RN013b.htm
Last updated: 30 May 2022 / dgk