![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Unicellular gland
An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x
![Goblet cell <p>An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Gl_.Ex_.Uni-4-1-ping.png)
Goblet cell
An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x
![- Mucin granules <p>An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Gl_.Ex_.Uni-4-2-ping.png)
- Mucin granules
An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x
![- Mucus <p>An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Gl_.Ex_.Uni-4-3-ping.png)
- Mucus
An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x
![Cilia <p>An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Gl_.Ex_.Uni-4-4-ping.png)
Cilia
An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x
![Basal bodies <p>An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x</p>](https://digitalhistology.org/wp-content/uploads/2017/06/T.E.Gl_.Ex_.Uni-4-5-ping.png)
Basal bodies
An electron micrograph shows the expanded upper portion of a goblet cell intercalated in the ciliated epithelium of the trachea. The contents of the poorly defined mucin granules are expelled onto the surface of the epithelium, forming a sheet of mucus that traps inhaled particles. 8000x