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Ventilatory drive will increase as a result. 5. During exercise, the depth of respiration increases. Explain. If a person's lung size cannot increase, how does exercise serve to How is air transported to the lungs? Describe and explain alveolar pressure change as the diaphragm flattens and the intercostals muscles contract. Why is a higher heart rate during the recovery period equated with a lower level of fitness? This has the effect of taking more oxygen into the body and removing more carbon dioxide. How does vital capacity of the lungs change with age? Lung volumes are the volume of gas in the lungs at a given time during the respiratory cycle and include tidal volume, inspiratory reserve volume, expiratory reserve volume, and residual volume. The heart therefore needs to beat faster to increase the speed at which oxygen is carried to the cells and the rate at which carbon dioxide is taken away by the blood. Explain why volume capacity does not change with exercise? Physical activity stimulates various brain chemicals that may leave you feeling happier, more relaxed and less anxious. Why adjusting our breathing rate helps to prevent acidemia from the increased lactic acid being generated? -Whitman's hand (lines 8-9). Explain why the blood pH begins to decrease when physical activity increases. Tidal volume is the volume of air inhaled in a single, normal breath. d irv . hemoglobin resulting in more oxygen delivered to tissues. Diffusion of carbon dioxide from pulmonary capillary blood to air in alveoli is decreased and less carbon dioxide is removed from blood. What is the difference between tidal volume and total lung capacity? After you breathe out, try to exhale more until you are unable to breathe out any more air. It expands the lung volume. You may list, as students report out, the physiological changes to the respiratory, cardiovascular, neuromuscular, and urinary systems expected during strenuous exercise and as noted in the case of the cyclist, Joe. How Does Exercise Affect Your Heart, and What are the Benefits? State the reason why oxygen moves from the alveoli into the pulmonary capillary blood. What are the adaptations that occur in the cardiovascular and respiratory systems with aerobic training? Ans.2)The IRV acts as a reservoir of extra lung volume that can become inflated with air as we need it, such as when there is a demand for more oxygen inhalation and CO2 exhalation during exercise . Lung volumes are the volume of gas in the lungs at a given time during the respiratory cycle and include tidal volume, inspiratory reserve volume, expiratory reserve volume, and residual volume.