Nasal Moist

Sodium chloride Ayr Saline (B.F. Ascher), Breathe Free (Thompson Medical), HuMist Moisturizing Mist (Scherer), NaSal (Bayer Corp.), Nasal Moist (Blairex), Ocean (Fleming and Co.), Mycinaire Saline M/sf (Pfeiffer)... 

OTC Muro 128, Nasal Mist, Nasal Moist, Ocean, SalineX, SeaMist, Slo-Salt... 

The mechanism of olfaction has many theories but is not fully understood and is still the subject of research. The nose is the human organ that detects smell (Fig. 5.9). It extends from the face to the end of the palate. In its simplest explanation the two nasal cavities are lined with a mucous membrane, kept moist by the secreted substance mucus. Chemicals in the air entering the nose must dissolve in this mucus before they can be detected. A small area - about the size of a small postage stamp - in the upper part of the nasal cavity contains olfactory cells, which are sensitive to the chemicals in the mucus solution. For a molecule to be detected it must bind specifically to the sensitive cells that act as sensory receptors. The sensory receptors situated in the olfactory epithelium (epithelium is the name given to the outer layer of covering cells) are believed to bind specifically with substances according to the shape of their molecules. 

In this regard, drawing in moist cold outside air and then heating it can lead to dry environments inside buildings in the winter, leading to desiccation of our nasal passages when we are inside and subsequent susceptibility to colds. 

The hard and soft palates divide the nose from the throat and mouth. Air enters the nose through two openings, the nostrils. The nasal passages are lined with a moist hairy mucous membrane that traps dust, dirt and bacteria breathed in with air. As air passes through the nasal passages it is also warmed and moistened. The pharynx connects the... 

BF3 It is a colourless gas having pungent and suffocating odour and forms dense white fumes in moist air. (Caution Potential symptoms of overexposure are nasal irritation, bums... 

This is the structure that is responsible for our sense of smell. The olfactory nerves connect directly to the limbic system in the brain, and thereby influence sensory functions such as hunger, sex and emotions. Smelling involves the inhalation of microscopic chemicals such as those contained in essential oils which flow through our nostrils into the nasal cavity. Here they pass over moist bony structures called turbinates to reach the olfactory receptor cells, where... 

A. /.oca/—Trivalent arsenic compounds are corrosive to the skin. Brief contact has no effect but prolonged contact results in a local hyperemia and later vesicular or pustular eruption. The moist mucous membranes are most sensitive to the irritant action. Conjunctiva, moist and macerated areas of skin, the eyelids, the angles of the ears, nose, mouth, and respiratory mucosa are also vulnerable to the irritant effects. The wrists are common sites of dermatitis, as are the genitalia if personal hygiene is poor. Perforations of the nasal septum may occur. Arsenic trioxide and pentoxide are capable of producing skin sensitization and contact dermatitis. Arsenic is also capable of producing keratoses, especially of the palms and soles. 

Inhalation of low concentrations of vapors will cause irritation of the respiratory tract, producing cough, excess sputum, and chest discomfort. Inhalation of vapors can cause severe irritation or bums of moist skin, mucous membranes, and the upper respiratory tract, as well as delayed pulmonary edema. Chronic exposure to the vapors may cause discoloration or erosion of the teeth, bleeding of nose and gums, and ulceration of the nasal mucosa. 

The respiratory tract from the nasal cavities and mouth to the lungs is lined by delicate cells covered by a moist... 

Runny nose or tearing Not accounted for by cold symptoms or allergies 0 = not present 1 = nasal stuffiness or unusually moist eyes 2 = nose running or tearing 4 = nose constantly running or tears streaming down cheeks ... 

Another problem that has become evident with the use of these materials, is a black discoloration of the inside surfaces of some nasal prostheses after they have been worn for a period of time. As these areas increase in size, the color value of the prosthesis decreases until it no longer matches the patienfs skin color and must be remade. A hygiene problem also arises, because the stained areas are visually unappeahng and cannot easily be removed from the surface of the sihcone. This problem is limited to nasal prostheses, which are more susceptible to contamination because of the high volume of moist air and secretions that constantly pass through the nasal apertures. This discoloration was also attributed to fungal growth [59]. 

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