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Ciliated pseudostratified columnar epithelium is the type of respiratory epithelium found in the linings of the trachea as well as upper respiratory tract, which allows filtering and humidification of incoming air. [1] Non-ciliated pseudostratified columnar epithelia are located in the prostate [2] and membranous part of male vas deferens.
Location Pharyngeal tonsil (also termed "adenoid") Ciliated pseudostratified columnar (respiratory epithelium) Incompletely encapsulated: Small folds—sometimes described as crypts [2] Roof of pharynx: Tubal tonsils: Ciliated pseudostratified columnar (respiratory epithelium) Roof of pharynx Palatine tonsils: Non-keratinized stratified squamous
Pseudostratified columnar epithelium, animated image highlights the epithelial cells, goblet cells, then underlying connective tissue Cells of the respiratory epithelium. . Basal cells shown in purple, ciliated cells shown in brown, goblet cells shown in green, and submucosal gland shown in bl
Pseudostratified columnar, ciliated: respiratory epithelium: respiratory: larynx - true vocal cords: Stratified squamous, non-keratinized - respiratory: trachea: Pseudostratified columnar, ciliated: respiratory epithelium: respiratory bronchi Pseudostratified columnar, ciliated respiratory terminal bronchioles Simple cuboidal, ciliated respiratory
There are three principal shapes of epithelial cell: squamous (scaly), columnar, and cuboidal. These can be arranged in a singular layer of cells as simple epithelium, either simple squamous, simple columnar, or simple cuboidal, or in layers of two or more cells deep as stratified (layered), or compound, either squamous, columnar or cuboidal ...
The nasopharynx is lined by respiratory epithelium that is pseudostratified, columnar, and ciliated. Polyps or mucus can obstruct the nasopharynx, as can congestion due to an upper respiratory infection. The auditory tube, which connects the middle ear to the pharynx, opens into the nasopharynx at the pharyngeal opening of the auditory tube ...
The olfactory segment is lined with a specialized type of pseudostratified columnar epithelium, known as olfactory epithelium, which contains receptors for the sense of the smell. This segment is located in and beneath the mucosa of the roof of each nasal cavity and the medial side of each middle turbinate.
Histologically, these cells are classified as pseudostratified columnar cells. [1] After recruitment from the ectoderm, the neuroectoderm undergoes three stages of development: transformation into the neural plate, transformation into the neural groove (with associated neural folds), and transformation into the neural tube.