Kidney (labels) - histology illustration

Transverse section of pyramidal substance of kidney of pig, the blood vessels of which are injected.

a. Large collecting tube, cut across, lined with cylindrical epithelium. b. Branch of collecting tube, cut across, lined with cubical epithelium. c, d. Henle’s loops cut across. e. Bloodvessels cut across. D. Connective tissue ground substance.

Histology illustration courtesy of Gray's Anatomy.