6. The graph shows the volume of air breathed out quickly and with force, following a deep breath in, for three different people, X, Y and Z. What is a possible explanation for the differences in the volume of air breathed out by these people shown? volume/dm³ time/s Chronic bronchitis | Emphysema | Normal lung function a. X | Z | Y b. Y | X | Z c. Y | Z | X d. Z | Y | X
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The attached graph (https://i.gyazo.com/8e369f0903304344c6159f4ccb32622b.png) shows changes in lung volume (in liters) as a function of distending pressure (in cm H2O, where 1 cm H2O = 0.74 mm Hg), for 3 different lungs. If curve b were the result obtained for a normal, healthy lung, which curve would be typical of the result expected for the lung of a person with emphysema? a. Curve a would be typical for the lung of a person with emphysema. b. Curve c would be typical for the lung of a person with emphysema. c. Neither curve a nor c would be typical; the expected result in the case of emphysema would be a straight line. d. Insufficient information is given to answer this question.
Dominador T.
A person breathes in and out every 3 seconds. The volume of air in his lungs (as shown in the figure) varies between a minimum of 1.0 liter and a maximum of 5.0 liters. Let t = 0 be the time this person just starts to breathe OUT (MAXIMUM volume of air in lung). (1) Based on the graph, find period, amplitude of this periodic function. (2) find a formula of this function. (3) At t = 20, what is the volume of air in this person's lungs? You need to provide work in steps which shows how you derive the answers.
Sri K.
The volume of air flowing into the lungs during a breath can be represented by the polynomial function V(t) = -0.041t^3 + 0.081t^2 + 0.202t where V is the volume in litres and t is the time in seconds. a) Use graphing technology to graph the function. Include a sketch of the graph below. b) According to the graph, what is the maximum volume of air inhaled into the lungs? c) According to the graph, how many seconds does it take for one complete breath? d) According to the graph, what percentage of the breath is spent inhaling?
Scott M.
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