Both the eye and the respiratory tract are protected against infections by which of the following?
a) the mucous membranes that cover their surface
b) the secretion of complement proteins
c) the release of slightly acidic secretions
d) the secretion of lysozyme onto their surface
e) interferons produced by immune cells
a) Mucous membranes are the moist linings of the orifices and internal parts of the body that are in continuity with the external surface. They cover, protect, and provide secretory and absorptive functions in the channels and extended pockets of the outside world that are incorporated in the body. This applies to: the whole of the alimentary tract from the mouth to the anus; the respiratory tract from the nose through the larynx, trachea, and bronchial tree leading to the microscopic millions of ‘blind ends’ at the lung alveoli; the urogenital tract — vulva, vagina, uterus, and Fallopian tubes in the female, urethra and bladder in both sexes reaching to the kidneys via the ureters, and the vas deferens and tubules reaching into each testis in the male. The linings of all of these are epithelia and most are known as mucous membranes.
Respiratory tract 2
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Bacterial lung infection Photo Mugs Bacterial lung infection. Computer artwork of rod- shaped bacteria (bacilli) on the surface of the alveoli of the lungs, causing a lower respiratory tract infection. This is more generally known as pneumonia, though that term can also be reserved for specific types of infection. Severe lung infections are diagnosed by X-ray and treated by antibiotics. The alveoli are the areas where gases are exch… |
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Computer art of head with upper respiratory tract Photo Mugs Upper respiratory tract. Computer graphic of aside view of a wire-frame head, showing the upper respiratory tract. Air passages(yellow) lead into the nasal cavity and oral(mouth) cavity, and then join at the throat toform the pharynx. Facial sinuses (white, green, pink, blue) are air-filled cavities in the bonessurrounding the nose. From the upper respiratory tract, air is inhaled into, and exhale… |
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Influenza viruses Photo Mugs Influenza viruses. Coloured transmissionelectron micrograph (TEM) of influenza (flu)viruses. The flu virus belongs to the orthomyxovirus group of viruses which have anaffinity for mucus. It contains a core of RNA( ribonucleic acid ) genetic material insidea protein coat or capsid. Spikes form a fringe(green) around the capsid and allow the virus toattach to its host cell. Influenza is an infection… |
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An Integrated Approach to the Management of Allergy and Asthma (NCME Video 742) The upper respiratory tract (URT) and lower respiratory tract (LRT) comprise one organ system, the respiratory tract. The commonalities between the URT and LRT underlie the clinically important links between allergic rhinitis and asthma. In this video, Dr. Finegold outlines an integrative prevention-and-treatment approach to allergy and asthma that incorporates the commonalities and interplays bet… |
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Krylon 11-Ounce Dulling Spray $4.33 Krylon Dulling Spray creates a temporary dull finish to reduce glare on items to be photographed or videotaped. It coats evenly and effectively to simplify lighting arrangements. The semi-drying finish wipes off easily and leaves no marks. This package contains 1 aerosol can with 11oz. of spray. Conformsto ASTM D 4236. DANGER: Extremely Flammable-Vapors may cause flash fires! Contents under pressu… |
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Alpha-1 Deficiency (Home Use) $24.95 Most people have never heard of Alpha-1 Antitrypsin deficiency but it is one of the most common hereditary disorders in the world. It’s been found in all populations yet it’s been widely misdiagnosed as asthma or some other lung condition. And an estimated 25 million people are undetected carriers of the gene that causes Alpha-1. The problem is, left untreated, Alpha-1 can lead to serious liver di… |
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Yogi Tea Breathe Deep, Herbal Supplement, Tea Bags, 16 ct $3.83 Breathe Deep Yogi Tea is an Ayurvedic blend of herbs and spices formulated to enhance healthy breathing…. |
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Photo Jigsaw Puzzle of Influenza viruses from Science Photo Library Photo Puzzle, Influenza viruses. Influenza viruses. Coloured transmissionelectron micrograph (TEM) of influenza (flu)viruses. The flu virus belongs to the orthomyxovirus group of viruses which have anaffinity for mucus. It contains a core of RNA( ribonucleic acid ) genetic material insidea protein coat or capsid. Spikes form a fringe(green) around the capsid and allow the virus toattach to its hos… |
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Photo Jigsaw Puzzle of Computer art of head with upper respiratory tract from Science Photo Library Photo Puzzle, Computer art of head with upper respiratory tract. Upper respiratory tract. Computer graphic of aside view of a wire-frame head, showing the upper respiratory tract. Air passages(yellow) lead into the nasal cavity and oral(mouth) cavity, and then join at the throat toform the pharynx. Facial sinuses (white, green, pink, blue) are air-filled cavities in the bonessurrounding the nose. … |
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Photo Jigsaw Puzzle of Bacterial lung infection from Science Photo Library Photo Puzzle, Bacterial lung infection. Bacterial lung infection. Computer artwork of rod- shaped bacteria (bacilli) on the surface of the alveoli of the lungs, causing a lower respiratory tract infection. This is more generally known as pneumonia, though that term can also be reserved for specific types of infection. Severe lung infections are diagnosed by X-ray and treated by antibiotics. The al… |
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Kendig & Chernick`s Disorders of the Respiratory Tract in Children (Mixed media product) $280.71 This definitive text on respiratory disease in children has been completely updated and revised for the 7th Edition. Several new chapters have been added, including information on the impact of environmental pollution on lung disease in children. Provi… |
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Inflammation and Allergy Drug Design (Hardcover) $140.58 This book educates the reader on the molecular and cellular mechanism of allergic diseases in the respiratory tract covering all aspects, from its immunological basis to its application in drug development. In contrast to other books, this book focuses… |
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Acute Respiratory Infections (Paperback) $24.74 Respiratory tract infections (RTIs) are the most common acute medical problem encountered in primary care. Not only are RTIs very common, the spectrum of disease is wide. Clinical management differs according to the characteristics of the infected host… |
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Respiratory Syncytial Virus $106.97 Respiratory syncytial virus (RSV) was first identified half a century ago in 1956. Following its discovery, the virus soon became recognised as a major viral pathogen causing extensive outbreaks of respiratory tract infections in both the very young a… |
