An introduction to respiratory gases

Observations Pathogenic effect has been judged here solely on the basis of retarded growth and mortality. But it must not be forgotten that coccidiosis, like all diseases, can have certain after-effects on the kidneys or liver in particular, which in turn have repercussions on fattening status at slaughter or on the animal's future if it is to be kept as a breeding animal. Often one disease is also complicated by other diseases. In fact, the above results were obtained with rabbits reared under especially favourable conditions, which means there were practically no bacterial side-infections.

An introduction to respiratory gases

Glossary Indoor Air Pollution and Health Indoor Air Quality IAQ refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. Understanding and controlling common pollutants indoors can help reduce your risk of indoor health concerns.

Health effects from indoor air pollutants may be experienced soon after exposure or, possibly, years later.

An introduction to respiratory gases

Immediate Effects Some health effects may show up shortly after a single exposure or repeated exposures to a pollutant. These include irritation of the eyes, nose, and throat, headaches, dizziness, and fatigue.

Such immediate effects are usually short-term and treatable. Sometimes the treatment is simply eliminating the person's exposure to the source of the pollution, if it can be identified.

Soon after exposure to some indoor air pollutants, symptoms of some diseases such as asthma may show up, be aggravated or worsened.

An introduction to respiratory gases

The likelihood of immediate reactions to indoor air pollutants depends on several factors including age and preexisting medical conditions.

In some cases, whether a person reacts to a pollutant depends on individual sensitivity, which varies tremendously from person to person. Some people can become sensitized to biological or chemical pollutants after repeated or high level exposures.

Certain immediate effects are similar to those from colds or other viral diseases, so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution. For this reason, it is important to pay attention to the time and place symptoms occur.

Mechanical ventilation - Wikipedia

If the symptoms fade or go away when a person is away from the area, for example, an effort should be made to identify indoor air sources that may be possible causes. Some effects may be made worse by an inadequate supply of outdoor air coming indoors or from the heating, cooling or humidity conditions prevalent indoors.

Identifying Problems in the Indoor Environments Long-Term Effects Other health effects may show up either years after exposure has occurred or only after long or repeated periods of exposure. These effects, which include some respiratory diseases, heart disease and cancer, can be severely debilitating or fatal.

It is prudent to try to improve the indoor air quality in your home even if symptoms are not noticeable. While pollutants commonly found in indoor air can cause many harmful effects, there is considerable uncertainty about what concentrations or periods of exposure are necessary to produce specific health problems.

People also react very differently to exposure to indoor air pollutants. Further research is needed to better understand which health effects occur after exposure to the average pollutant concentrations found in homes and which occurs from the higher concentrations that occur for short periods of time.

Top of Page Primary Causes of Indoor Air Problems Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems. Inadequate ventilation can increase indoor pollutant levels by not bringing in enough outdoor air to dilute emissions from indoor sources and by not carrying indoor air pollutants out of the area.

High temperature and humidity levels can also increase concentrations of some pollutants. Pollutant Sources There are many sources of indoor air pollution. Fuel-buring combustion appliances Building materials and furnishings as diverse as: Deteriorated asbestos-containing insulation Newly installed flooring, upholstery or carpet Cabinetry or furniture made of certain pressed wood products Products for household cleaning and maintenance, personal care, or hobbies Central heating and cooling systems and humidification devices Excess moisture.The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history.

Respiratory System - Introduction - Respiratory System Introduction - Breathing and Exchange of Gases Video Class - Breathing and Exchange of Gases Class for IIT JEE exams preparation and to help CBSE, Intermediate students covering, Respiration, Respiratory System, Tract and Organs, Mechanism of Breathing, Exchange of Gases, .

Introduction: Arterial blood gas analysis is an essential part of diagnosing and managing a patient’s oxygenation status and acid-base balance.

Respiratory system - Wikipedia

The circulatory system transports gases from the lungs to tissues throughout the body and vice versa. A variety of diseases can affect the respiratory system, such as asthma, emphysema, chronic obstruction pulmonary disorder (COPD), and lung cancer.

The Respiratory System: Pathway of Oxygen The respiratory tract conveys air from the mouth and nose to the lungs, where the gases oxygen and carbon dioxide are exchanged between the alveoli and the capillaries.

Encyclopædia Britannica, Inc. Lungs are used by the terrestrial forms of living beings for the exchange of gases Among vertebrates fishes use gills whereas reptiles, birds and mammals respire through lungs. e e Amphibians like frog can respire through their moist skin also.

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