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Interlobar ducts (between the main hepatic ducts and the interlobular ducts) - pseudostratified columnar epithelium. Interlobular bile ducts (between the interlobar ducts and the lobules) - simple columnar epithelium. Intralobular bile ducts (cholangioles or Canals of Hering) - simple cuboidal epithelium, then by hepatocytes
The epithelium of the bronchioles starts as a simple ciliated columnar epithelium and changes to simple ciliated cuboidal epithelium as the bronchioles decreases in size. The diameter of the bronchioles is often said to be less than 1 mm, though this value can range from 5 mm to 0.3 mm.
Simple cuboidal epithelium commonly differentiates to form the secretory and duct portions of glands. [6] Stratified cuboidal epithelium protects areas such as the ducts of sweat glands, [7] mammary glands, and salivary glands. Columnar Columnar epithelial cells are elongated and column-shaped and have a height of at least four times their width.
The cells in the respiratory epithelium are of five main types: a) ciliated cells, b) goblet cells, c) brush cells, d) airway basal cells, and e) small granule cells (NDES) [6] Goblet cells become increasingly fewer further down the respiratory tree until they are absent in the terminal bronchioles; club cells take over their role to some extent here. [7]
Simple columnar, non-ciliated - digestive: anus: Stratified squamous, non-keratinized superior to Hilton's white line Stratified squamous, keratinized inferior to Hilton's white line - digestive: gallbladder: Simple columnar, non-ciliated - endocrine: thyroid follicles: Simple cuboidal - nervous: ependyma: Simple cuboidal - lymphatic: lymph ...
Their epithelium can be simple cuboidal or simple columnar. [10] Striated ducts are part of the intralobular ducts. They are found in the submandibular gland, [11] [12] sublingual duct, and the parotid gland, but are more developed in the parotid gland. [13] They are not present in pancreas.
By layer, epithelium is classed as either simple epithelium, only one cell thick (unilayered) or stratified epithelium as stratified squamous epithelium, stratified cuboidal epithelium, and stratified columnar epithelium that are two or more cells thick (multi-layered), [2] [3] and both types of layering can be made up of any of the cell shapes ...
Simple columnar epithelium and simple cuboidal epithelium in the collecting ducts of the pig kidney. The walls of the large and small connecting tubules (a and b respectively), the circular structures, are formed by simple columnar epithelium (a) and simple cuboidal epithelium (b). The segments of the system are as follows:
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