Photo essay on depression


photo essay on depression

in a separate section of the catalog: FSA/OWI Color Photographs view description. Each lobe has its own bronchi and blood supply. These inflammatory cells, also known as white blood cells, include neutrophils, lymphocytes, and macrophages. The term "smoker's lung" refers to the structural and functional abnormalities (diseases) in the lung caused by cigarette smoking. This structure provides a huge surface for gas exchange that has been estimated to be equal to the size of a tennis court. Terms of Service and, privacy Policy and the use of technologies such as cookies by Slate and our partners to deliver relevant advertising on our site, in emails and across the Internet, to personalize content and perform site analytics. (Waste gases are by-products of the body's metabolism.). For a video overview of the collection, see ". Figure 3 is a microscopic section of a normal lung, showing the alveoli. Look again at Figure 2 and observe that they are scattered beneath the lining of the airway.

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Inflammatory cells are also in a day in a big city essay the normal bronchial wall. Indeed, if all deaths from diseases related to smoking (lung disease, heart disease, and cancers of many different organs) were considered, a case could be made for cigarette smoking as the leading cause of death in industrialized countries. The smaller branches of the bronchial tree, called bronchioles, also contain muscle, but they lack cartilage. Madison Place Highlights include: GE kitchen appliances Quality crafted custom designed flat paneled wood cabinets in kitchen with granite counters Impact resistant windows 18 x 18 Ceramic tile flooring in living areas on first floor Access control entry Full lawn maintenance Resort-Style Swimming Pool with. Beneath the surface of the airway, the goblet cells and other epithelial cells are clustered into structures called bronchial glands. (Hence, the term tracheobronchial tree.) The walls of the bronchi contain muscles that can cause the airway to expand (widen) or contract (narrow). In total, the black-and-white portion of the collection consists of about 175,000 black-and-white film negatives, encompassing both negatives that were printed for FSA-OWI use and those that were not printed at the time. Their job (in this situation) is to destroy and/or engulf any inhaled foreign material that becomes trapped in the mucus. Conversely, when exposed to polluted or very cold air, the airway contracts to protect the downstream tissues from injury. The cartilage helps to keep the airway from collapsing when there is negative pressure in the airway, as occurs when we breathe in (inhale or inspire). Though not as large in size than some of our better known neighbors, theres a certain comfort in being part of a small friendly community. Documenting America, : The Farm Security Administration/Office of War Information Photo Collection.


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