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- during pneumonia, a layer of fluid accumulates in the aveoli adding a layer to the distance O2 has to cross on its way to the blood cell and hemoglobin. the rate of O2 diffusion in pnumonia will be? slow unchanged fasterIf a respiratory pigment such as hemoglobin or hemocyanin is not present in blood the blood would not carry carbon dioxide the blood would have decreased oxygen carrying capacity the blood would not carry oxygenAll cilia of the upper respiratory tract move mucus to the: trachea O esophagus vestibule of the nose The last complete ring of cartilage in the respiratory tract as you move from the nose toward the lungs is in the: trachea bronchi O larynx O bronchioles
- The main cell involved in the exchange of gases in the peripheral tissue, is the cell that normally contains: surfactant multilamellar bodies O 2,3-BPG myoglobinIn which of the following erythropoetic cells does hemoglobin synthesis begin? Oa Polychromatophilic erythroblast Ob Proerythroblast oh 3cOrthochromatic erythroblast Od Reticulocyte e. Basophilic erythroblastThe unique cell (arrow) called the cilia is found in epithelium lining the trachea or larynx.
- pulmonary oxygenated systemic deoxygenated left right The circulatory system is divided into two circuits. The circuit transports blood through the lungs and returns the blood to the side of the heart. The circuit transports blood through the body, returning the blood to the side of the heart.In the epithelium of the airways, there are cells with a dome-shaped apical part, on the surface of which are located microvilli. The cell shows a well-developed synthetic apparatus, and in the apical part secretory granules. Name this cell. Cambial cell Borderless cell. Clara cell goblet cell. O Endocrine cell.In the trachea, mucus secreted by _____cells traps foreign particles which are then swept away by tiny _______ on the surface of epithelial cells.
- In chronic smokers, the lining of the trachea and bronchichanges from a pseudostratified ciliated columnarepithelium to a stratified squamous epithelium. Why do youthink this change occurs? What are some consequences ofthis epithelium in the trachea?Humphrey has smoked for years. In the past few months, mucushas accumulated in his lungs and he coughs often. A tissue sample(biopsy) taken from the lower portion of his trachea indicated thatstratified squamous epithelium has replaced the normal pseudostratified columnar epithelium lining the trachea. Humphrey’s physicianexplained that he has bronchitis, inflammation of the respiratoryairways, caused by smoking. As a result, some of the normal epithelium of the large respiratory passageways has been converted tostratified squamous epithelium. Explain why mucus has accumulated in Humphrey’s lungs to a greater degree than normal.Work in a mine is known to cause inhalation of large amounts of coal dust. Inhaled coal dust can be detected in the following pulmonary cells: Capillary endothelial cells Alveolar Macrophages Respiratory epithelial cells Secretory epithelial cells O Pericapillary cells