PHED-3126EL Lecture Notes - Lecture 9: Breathing, Valsalva Maneuver, Respiratory Minute Volume
28 Dec 2019
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Chapter 9 the pulmonary system and physical activity. Diagram the ventilatory system, and label the glottis, larynx, trachea, bronchi, bronchioles, and alveoli. Describe the dynamics of inspiration and expiration during rest and physical activity. Define and quantify static and dynamic lung function measures related to physical performance. Describe the valsalva maneuver and its physiologic consequences. Define minute ventilation, alveolar minute ventilation, ventilation-perfusion ratio, and anatomic and physiologic dead spaces. List partial pressures of respired gases in alveoli, arterial blood, active muscles, and mixed- venous blood during rest and maximal physical activity. Explain the bohr effect and its benefit during physical activity. Explain what triggers exercise-induced asthma, and identify three factors that affect its severity. List and quantify three means for carbon dioxide transport in blood. Identify major factors that regulate pulmonary ventilation during rest and physical activity. Graph relationships among pulmonary ventilation, blood lactate concentrations, and oxygen uptake during incremental activity.
