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29 relations: Altitude, Altitude sickness, Andes, Asthma, Atmosphere of Earth, Chronic obstructive pulmonary disease, Denver, FEV1/FVC ratio, Freediving, Functional residual capacity, Helium dilution technique, Himalayas, Litre, Lung, Lung volumes, Nitrogen washout, Plethysmograph, Pulmonary fibrosis, Pulmonary function testing, Respiratory minute volume, Respiratory rate, Sea level, Spirometer, Spirometry, Thoracic diaphragm, Tibet, Tidal volume, Vital capacity, Volume.
Altitude
Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, atmospheric pressure, and many more).
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Altitude sickness
Altitude sickness, also known as acute mountain sickness (AMS), is a negative health effect of high altitude, caused by acute exposure to low amounts of oxygen at high altitude.
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Andes
The Andes or Andean Mountains (Cordillera de los Andes) are the longest continental mountain range in the world.
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Asthma
Asthma is a common long-term inflammatory disease of the airways of the lungs.
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Atmosphere of Earth
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.
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Chronic obstructive pulmonary disease
Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term breathing problems and poor airflow.
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Denver
Denver, officially the City and County of Denver, is the capital and most populous municipality of the U.S. state of Colorado.
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FEV1/FVC ratio
The FEV1/FVC ratio, also called Tiffeneau-Pinelli index, is a calculated ratio used in the diagnosis of obstructive and restrictive lung disease.
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Freediving
Freediving, free-diving, free diving, breath-hold diving, or skin diving is a form of underwater diving that relies on breath-holding until resurfacing rather than the use of breathing apparatus such as scuba gear.
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Functional residual capacity
Functional Residual Capacity (FRC) is the volume of air present in the lungs at the end of passive expiration.
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Helium dilution technique
The helium dilution technique is the way of measuring the functional residual capacity of the lungs (the volume left in the lungs after normal expiration).
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Himalayas
The Himalayas, or Himalaya, form a mountain range in Asia separating the plains of the Indian subcontinent from the Tibetan Plateau.
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Litre
The litre (SI spelling) or liter (American spelling) (symbols L or l, sometimes abbreviated ltr) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre. A cubic decimetre (or litre) occupies a volume of 10 cm×10 cm×10 cm (see figure) and is thus equal to one-thousandth of a cubic metre. The original French metric system used the litre as a base unit. The word litre is derived from an older French unit, the litron, whose name came from Greek — where it was a unit of weight, not volume — via Latin, and which equalled approximately 0.831 litres. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI,, p. 124. ("Days" and "hours" are examples of other non-SI units that SI accepts.) although not an SI unit — the SI unit of volume is the cubic metre (m3). The spelling used by the International Bureau of Weights and Measures is "litre", a spelling which is shared by almost all English-speaking countries. The spelling "liter" is predominantly used in American English. One litre of liquid water has a mass of almost exactly one kilogram, because the kilogram was originally defined in 1795 as the mass of one cubic decimetre of water at the temperature of melting ice. Subsequent redefinitions of the metre and kilogram mean that this relationship is no longer exact.
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Lung
The lungs are the primary organs of the respiratory system in humans and many other animals including a few fish and some snails.
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Lung volumes
Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle.
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Nitrogen washout
Nitrogen washout (or Fowler's method) is a test for measuring anatomic dead space in the lung during a respiratory cycle, as well as some parameters related to the closure of airways.
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Plethysmograph
A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains).
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Pulmonary fibrosis
Pulmonary fibrosis (literally "scarring of the lungs") is a respiratory disease in which scars are formed in the lung tissues, leading to serious breathing problems.
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Pulmonary function testing
Pulmonary function test (PFT) is a complete evaluation of the respiratory system including patient history, physical examinations, and tests of pulmonary function.
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Respiratory minute volume
Respiratory minute volume (or minute ventilation or minute volume) is the volume of gas inhaled (inhaled minute volume) or exhaled (exhaled minute volume) from a person's lungs per minute.
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Respiratory rate
The respiratory rate is the rate at which breathing occurs.
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Sea level
Mean sea level (MSL) (often shortened to sea level) is an average level of the surface of one or more of Earth's oceans from which heights such as elevations may be measured.
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Spirometer
A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs.
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Spirometry
Spirometry (meaning the measuring of breath) is the most common of the pulmonary function tests (PFTs).
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Thoracic diaphragm
For other uses, see Diaphragm (disambiguation). The thoracic diaphragm, or simply the diaphragm (partition), is a sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity.
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Tibet
Tibet is a historical region covering much of the Tibetan Plateau in Central Asia.
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Tidal volume
Tidal volume (symbol VT or TV) is the lung volume representing the normal volume of air displaced between normal inhalation and exhalation when extra effort is not applied.
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Vital capacity
Vital capacity (VC) is the maximum amount of air a person can expel from the lungs after a maximum inhalation.
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Volume
Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.
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References
[1] https://en.wikipedia.org/wiki/Lung_volumes
