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What is the function of the respiratory epithelium that lines the nasal cavity?
Wiki User
∙ 13y ago
Most of the conducting portion is lined with ciliated pseudostratified columnar epithelium known as respiratory epithelium . This epithelium has at least five cell types, all of which touch the thick basement membrane:
§ Ciliated columnar cells ) are the most abundant, each with about 300 cilia on its apical surface
MEDICAL APPLICATION
Immotile cilia syndrome, a disorder that causes infertility in men and chronic respiratory tract infections in both sexes, is caused by immobility of cilia and flagella induced, in some cases, by deficiency of dynein, a protein normally present in the cilia. Dynein participates in the ciliary movement
§ Goblet cells are also abundant in some areas of the respiratory epithelium , filled in their apical portions with granules of mucin glycoproteins.
§ Brush cells are a much more sparsely scattered and less easily found, columnar cell type, which has a small apical surface bearing a tuft of many short, blunt microvilli . Brush cells express some signal transduction components like those of gustatory cells and have afferent nerve endings on their basal surfaces and are considered to be chemosensory receptors.
§ Small granule cells are also difficult to distinguish in routine preparations, but possess numerous dense core granules 100-300 nm in diameter. Like brush cells, they represent about 3% of the total cells and are part of the diffuse neuroendocrine system
§ Basal cells, small rounded cells on the basement membrane and not extending to the luminal surface, are stem cells that give rise to the other cell types.
Respiratory potion lined by simple squamous epithelium.There are two types of neumocytes lined by alveoli type1 and type2 . Type 2 cells secrete surfactant.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoto convert hot/cold air into normal body temperature or as the body requires.
Wiki User
∙ 13y agoWiki User
∙ 11y agorespiratory epithelial
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What is the kind of epithelial tissue of pleura?
Pseudostratified ciliated columnar epithelium. This lines the nasal cavity as well as the trachea. The oral cavity, as well as the pharynx, is lined with stratified squamous epithelium, due to obstructions from food.
What is the simple squamous epithelium that lines the peritoneal cavity called?
The peritoneal membrane lines the peritoneal cavity.
What is the general function of mucous membrane?
The mucous membrane is epithelium. It lines the passageways and chambers that communicate with the exterior. The exterior is known as digestive, respiratory, reproductive, and urinary tracts.
What is the tissue that is the protective covering for the body and lines the digestive respiratory and urinary passages?
Epithelium Tissue
Where do goblet cells occur in the respiratory system?
Goblet cells are in the respiratory epithelium, which lines the airways from the pharynx down into the lungs. They secrete mucous.
What is the function of gland cells?
They are sheets of cells [Epithelial tissue or epithelium] that covers the body surface or lines a body cavity. They form bounderies between different environments and nearly all substances received or given off by the body must pass through some sort of epithelium.
What type of epithelium lines most of the respiratory tract?
The cells that line the epithelium in the tracheae are ciliated pseudostratified columnar epithelium cells.They are of three types -ciliated cellsgoblet cellsbasal cells
Which epithelium forms wall of air sacs of lungs?
simple squamous epithelium
What type of epithelium lines the aorta?
stratifed squamous epithelium
Simple columnar epithelium of the digestive tract is characterized by?
Simple columnar epithelium of the digestive tract can present as either ciliated or non-ciliated. The ciliated moves mucus in the respiratory system, the non-ciliated lines the gastrointestinal tract.
What is the function of stratified squamous epithelium that lines the oropharynx and laryngopharynx?
The oropharynx and the laryngopharynx are lined by non-keratinizing stratified squamous epithelium.
What type of epithelial tissue lines the respiratory tract?
Any body area that has an outlet to the out side is covered in a mucous membrane: respiratory tact. digestive tract, urinary tract, even the membrane that surrounds the orbit of the eye (eye ball).
