Goblet cells
Goblet Cells
Goblet cells (pronunciation: /ˈɡɒblɪt sɛlz/) are specialized epithelial cells that secrete mucus (a thick protective fluid) lining the respiratory and digestive tract. The term "goblet" refers to these cells' cup-like shape, similar to a wine goblet.
Etymology
The term "goblet cell" was coined due to the cell's resemblance to a goblet, a type of drinking vessel. The word "goblet" comes from the Old French gobelet, a diminutive of gobe, meaning "cup". The term "cell" comes from the Latin cella, meaning "small room".
Function
Goblet cells are responsible for producing and maintaining a protective mucus barrier against microbial invasion and mechanical damage in the respiratory tract, digestive tract, and other mucous membranes. They also aid in the movement of particles out of the respiratory tract through a process known as mucociliary clearance.
Related Terms
- Epithelial cells: These are the cells that line the surfaces of organs and structures throughout the body. Goblet cells are a type of epithelial cell.
- Mucus: A thick, slippery substance produced by goblet cells and other glandular cells to protect and lubricate various parts of the body.
- Respiratory tract: The pathway that air takes as it enters the body, through the nose or mouth, and into the lungs. Goblet cells line parts of this tract.
- Digestive tract: The system of organs responsible for getting food into and out of the body and for making use of food to keep the body healthy. Goblet cells are found throughout this tract.
- Mucociliary clearance: The process by which mucus and trapped particles are moved out of the lungs by the coordinated action of cilia on the respiratory epithelium.
External links
- Medical encyclopedia article on Goblet cells
- Wikipedia's article - Goblet cells
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