It affects the nasal mucous membrane and is composed of tall column-shaped cells, mucous cells, which have small hairlike structures called cilia.
The submucosal glands of the nasopharynx have the histological structure of a salivary gland, being composed of mucous and serous acini, as well as mucous acini with serous demilunes [ 70].
In Dipsas albifrons, the posterior region of the il2 is composed only by seromucous cells, while the rest of the gland is composed of mucous cells.
The normal pseudostratified bronchial epithelium is composed of basal, mucous, and ciliated cells.
The internal wall of the cecum is composed of a thick mucous membrane, through which water and salts are absorbed.
The bladder is a muscular membranous organ that is composed of four layers, namely mucous, adventitia, serosa and muscularis, and its elasticity decreases in response to a direct mechanical increase in stress and strain on its structure (when a large amount of saline is infused).
The nasal cavity is lined by a pseudostratified epithelium composed of columnar, ciliated epithelial cells, mucous-secreting goblet cells, and basal cells [5]; lymphocytes, mast cells, dendritic cells, and macrophages migrate to and then home in the epithelium under pathologic conditions.
The propagation of the diphtheria bacilli leads to the formation of a thick, leathery, grayish membrane that is composed of bacteria, dead cells from the mucous membranes, and fibrin (the fibrous protein associated with blood clotting).
MEC is mainly composed of three cell types (squamous or epidermoid, mucous and intermediate cells), which correlates with the histological grade and reflects its clinical behavior.
These glands are narrow tubules composed of three major cell types: zymogenic, parietal, and mucous neck cells.
