As of May 2011, plasterers and stucco masons earned an average of $41,750 per year and $20.07 per hour. The median of all salaries reported to the Bureau of Labor Statistics was $36,830 per hour.
The trachea is lined by pseudostratified squamous epithelium. Epithelium lines body cavities and surfaces. Pseudostratified squamous epithelium is pseudostratified because it is only one cell layer thick, yet it appears to be stratified. In reality, every cell touches the basement membrane.
This helps to keep the lungs free of particles and bacteria. 1  show labels. This is a cross section through the trachea, showing the major layers. 2  show labels. This is a higher power image of the trachea showing the glands and epithelium in more detail. Can you classify the epithelium? There are lots of sero-mucous glands in the submucosa layer. The layer of cartilage is not seen here, but instead there is a layer of fibro-elastic connective tissue which runs between the rings of cartilage. Bronchii