53. Question - Diagram the different cell types found in pseudostratified columnar epithelium that lines the respiratory tract.
This epithelium has a prominent basement membrane made up of the basal lamina and the reticular lamina.
54. Question - Diagram the olfactory mucosa.
55. Question - Diagram and name the parts of the epiglottis. Also illustrate its relationship to the tongue, pharynx and esophagus.
56. Question - Illustrate the structure of the larynx as seen in the frontal plane naming its component parts. Classify each type of tissue found in this organ.
57. Question - Diagram the histology of the trachea and primary bronchi.
The trachea and primary bronchi have a similar structure. They have c-shaped hyaline cartilage rings with their opening facing posteriorly. Smooth muscle is only found between the ends of the cartilages.
58. Question - Illustrate the structure of the lung lobule including the blood and lymph vessels that serve it.
The lung lobule is distinctive primarily because it is at the apex of the lobule that the pulmonary vein (carrying oxygenated blood) and the lymphatic vessels that run in the interlobular septum first join the pulmonary artery (carrying venous blood). From that point to the lung hilus all of these and the bronchial arteries are found beside air passages.
59. Question - Make a line drawing illustrating the fine structure of the alveolus.
Notice that most alveolar walls serve two alveoli. The wall therefore consists of two epithelial surfaces delineating a space containing continuous capillaries, basal laminae, some collagen and elastic fibers and macrophages.
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Last Revised: Thu, Jan 25, 2007