What term is used to describe the volume of air moving in to and out of the lungs each minute?
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GCSE Eduqas Cardio-respiratory systemThe respiratory system transports oxygen from the air we breathe, through a system of tubes, into our lungs and then diffuses it into the bloodstream, whilst carbon dioxide makes the opposite journey. Part of Physical Education Applied anatomy and physiology
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Lung volumes and vital capacityVital capacity is the maximum amount of air that can be breathed out after breathing in as much air as possible. Taking part in regular aerobic exercise has been shown to increase a person's vital capacity. Breathing rate (frequency, BR) is the number of breaths in a minute. The average breathing rate is 12 breaths per minute. Tidal volume (TV) is the amount of air breathed in with each normal breath. The average tidal volume is 0.5 litres (500 ml). Minute ventilation (VE) is the total volume of air entering the lungs in a minute. The average minute ventilation is 6 litres per minute. Minute ventilation = breathing rate × tidal volume VE = BR × TV 6 litres per minute = 12 × 0.5 During exercise, tidal volume increases as does the depth of breathing and the rate of breathing. This has the effect of taking more oxygen into the body and removing more carbon dioxide.
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What is the term used to describe a volume of air moved in or out of the lungs during a quiet respiratory cycle?Tidal volume: that volume of air moved into or out of the lungs during quiet breathing (TV indicates a subdivision of the lung; when tidal volume is precisely measured, as in gas exchange calculation, the symbol TV or VT is used.)
What is the term used to describe the volume of air left in the lungs at the end of normal quiet expiration?Function Residual Capacity(FRC)
It is the amount of air remaining in the lungs at the end of a normal exhalation. It is calculated by adding together residual and expiratory reserve volumes.
What is the name of the volume of air moved?Pulmonary minute volume (VE) is the amount of air moved in 1 minute. Minute alveolar ventilation (VA) is the amount of air capable of participating in gas exchange or the volume of air breathed each minute. During exercise, VAincreases with increases in metabolic rate and CO2 production.
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