Cladius cells are considered as supporting cells within the organ of Corti in the cochlea. These cells extend from Hensen's cells to the spiral prominence epithelium, forming the outer sulcus. They are in direct contact with the endolymph of the cochlear duct. These cells are sealed via tight junctions that prevent flow of endolymph between them. Boettcher cells are located immediately under Claudius cells in the lower turn of the cochlea.
Claudius cells are named after German anatomist, Friedrich Matthias Claudius (1822–1869).
- Kanazawa, A.; Sunami, K.; Takayama, M.; Nishiura, H.; Tokuhara, Y.; Sakamoto, H.; Iguchi, H.; Yamane, H. (Oct 2004). "Probable function of Boettcher cells based on results of morphological study: localization of nitric oxide synthase.". Acta Otolaryngol Suppl (554): 12–6. doi:10.1080/03655230410018444. PMID 15513504.
- Jahn, AF.; Santos-Sacchi, J. (8 February 2001). Physiology of the ear. Cengage Learning. p. 274. ISBN 978-1-56593-994-3. Retrieved 26 May 2011.