2.2_ The Respiratory Tract Histology_ Essential Human Anatomy and Physiology I with Lab- Keck.pdf

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8/20/20202.2: The Respiratory Tract Histology: Essential Human Anatomy and Physiology I with Lab- Keck2/6projections) at the apex or top of the cells (apical side.) These cilia move or “beat”in an upward sweeping motion. Their action helps to keep the respiratory tract freeof debris. The cells are called “pseudostratified” because they appear to be inlayers. Upon closer examination, all the cells attach to thebasement membraneor“floor” of the epithelial tissue. The cells are calledcolumnarbecause they are tallerthan they are wide.Goblet cells(mucus producing cells) are also present within theepithelium of the respiratory tract. Goblet cells are named for their wineglass (orgoblet) like appearance. Their mucus helps to trap debris within the respiratory tract,which can then be more easily removed by the cilia.Figure 2.14Diagram of the typical cells of the respiratory epithelium
8/20/20202.2: The Respiratory Tract Histology: Essential Human Anatomy and Physiology I with Lab- Keck3/6Figure 2.15 Respiratory Epithelium:note the small cilia at the top (apex) of thesecellsA few other types of epithelium can be found in the respiratory system, although inless abundance. Stratified squamous epithelium, much like skin, can be found at the

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Term
Fall
Professor
N/A
Tags
Mucus, respiratory tract, respiratory epithelium, Pulmonary alveolus

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