Figure 2. Cell types of the nasal epithelium with covering mucous layer showing ciliated cell (A), non-ciliated cell (B), goblet cells (C), mucous gel-layer (D), sol layer (E), basal cells (F) and basement membrane (G). Reproduced with permission from ref. [20]

From

Nasal Drug Delivery Systems: An Overview

Muhammad U. Ghori, Mohammed H. Mahdi, Alan M. Smith, Barbara R. Conway

American Journal of Pharmacological Sciences. 2015, 3(5), 110-119 doi:10.12691/ajps-3-5-2