Stratified columnar epithelium
Template:Short description Template:Infobox cell Template:Epithelia series Stratified columnar epithelium is a rare type of epithelial tissue composed of column-shaped cells arranged in multiple layers. It is found in the conjunctiva, pharynx, anus, and male urethra. It also occurs in embryo.
Location
Stratified columnar epithelia are found in a variety of locations, including:
- parts of the conjunctiva of the eye[1][2]
- parts of the pharynx[3]
- anus[3][4]
- male urethra and vas deferens[3][5]
- excretory duct of mammary gland and major salivary glands[6]
Embryology
Stratified columnar epithelium is initially present in parts of the gastrointestinal tract in utero, before being replaced with other types of epithelium. For example, by 8 weeks, it covers the lining of the stomach.[7][8] By 17 weeks, it is replaced by simple columnar epithelium.[7] This is also found in the fetal esophagus.[8]
Function
The cells function in secretion and protection.[9]
See also
References
<templatestyles src="Reflist/styles.css" />
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
Script error: No such module "Check for unknown parameters".
External links
- Anatomy Atlases – Microscopic Anatomy, plate 02.23 – "Stratified Columnar Epithelium"
Template:Epithelial types Script error: No such module "Authority control".