Bronchiole

The low columnar epithelium of this bronchiole contrasts with the simple squamous endothelium of the adjacent arteriole. 

The very small round nuclei forming a row in each wall of the arteriole are those of smooth muscle fibers, cut in cross section as they wrap around the longitudinally-sectioned vessel.

Comments and questions: dgking@siu.edu

SIUC / School of Medicine / Anatomy / David King

https://histology.siu.edu/crr/CR016b.htm
Last updated:  27 May 2022 / dgk