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What type of tissue is the mucosa layer? What type of cell is found in the mucosa layer? What special layer is below the mucosa layer?
pseudostratified ciliated columnar epithelium; goblet cells; lamina propria
What type of tissue is the submucosa layer? What special structures does it contain?
thick connective tissue; mucous and seromucous glands
What type of cell in the lung secretes surfactant? What is the shape of its nucleus?
Type II Alveolar cell; rounded
What type of cell in the lung is involved in diffusion of gases? What is the shape of its nucleus?
Type I Alveolar cell; flat
what are the two types of cells that secrete mucus in the tracheal wall? what is the difference between the two?
goblet: secretory unit cells that lie between other cells in epithelium
seromucous: glands in which some cells are serous and others are mucous
what are the two types of cells found in the alveoli and how are they different in shape and function? where are they found?
Type I: flattened cells, gas exchange
Type II: cuboidal cells, secrete SURFACTANT
what type of tissue is the lamina propria?
where does the lamina propria lie? which layer of the tracheal wall is it in?
elastic fibers; below epithelium; mucosa layer
What is the function of the c-shaped hyaline cartilage rings?
support tracheal mucosa and prevents collapse of trachea
Bands of smooth muscle on posterior side of trachea, joins the free ends of the hyaline cartilage rings
Conical organ with broad, concave base resting on diaphragm, blunt peak (apex) projects slightly above clavicle
The bronchi that arise from the trachea and enter the lung. Right bronchus is slightly wider and more vertical.
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